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final

multiple

choice

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Only

Which

of

the

following

is

a

key

distinction

between

well

designed

experiments

and

observational

studies

A

More

subjects

are

available

for

experiments

than

for

observational

studies

B

Ethical

constraints

prevent

largescale

observational

studies

C

Experiments

are

less

costly

to

conduct

than

observational

studies

D

An

experiment

can

show

a

direct

causeandeffect

relationship

whereas

an

observational

study

can

not

E

Tests

of

significance

can

not

be

used

on

data

collected

from

an

observational

study

D

An

experiment

can

show

a

direct

causeandeffect

relationship

whereas

an

observational

study

can

not

CLICK

THE

ARROWS

BELOW

TO

ADVANCE

Terms

in

this

set

Which

of

the

following

is

a

key

distinction

between

well

designed

experiments

and

observational

studies

A

More

subjects

are

available

for

experiments

than

for

observational

studies

B

Ethical

constraints

prevent

largescale

observational

studies

C

Experiments

are

less

costly

to

conduct

than

observational

studies

D

An

experiment

can

show

a

direct

causeandeffect

relationship

whereas

an

observational

study

can

not

E

Tests

of

significance

can

not

be

used

on

data

collected

from

an

observational

study

D

An

experiment

can

show

a

direct

causeandeffect

relationship

whereas

an

observational

study

can

not

A

manufacturer

of

balloons

claims

that

p

the

proportion

of

its

balloons

that

burst

when

inflated

to

a

diameter

of

up

to

inches

is

no

more

than

Some

customers

have

complained

that

the

balloons

are

bursting

more

frequently

If

the

customers

want

to

conduct

an

experiment

to

test

the

manufacturers

claim

which

of

the

following

hypotheses

would

be

appropriate

A

Ho

p

Ha

P

B

HO

p

Ha

P

C

p

Ha

p

D

p

Ha

p

E

Ho

p

Ha

p

B

HO

p

Ha

P

Lauren

is

enrolled

in

a

very

large

college

calculus

class

On

the

first

exam

the

class

mean

was

and

the

standard

deviation

was

On

the

second

exam

the

class

mean

was

and

tbestandard

deviation

was

Lauren

scored

on

both

exams

Assuming

the

scores

on

each

exam

were

approximately

uormalbi

distributed

on

which

exam

did

Lauren

score

better

relative

to

the

rest

of

the

class

A

She

scored

much

better

on

the

first

exam

B

She

scored

much

better

on

the

second

exam

C

She

scored

about

equally

well

on

both

exams

D

It

is

impossible

to

tell

because

the

class

size

is

not

given

E

It

is

impossible

to

tell

because

the

correlation

between

the

two

sets

of

exana

scores

is

not

given

C

She

scored

about

equally

well

on

both

exams

Suppose

that

percent

of

the

subscribers

to

a

cable

television

service

watch

the

shopping

channel

at

least

once

a

week

You

are

to

design

a

simulation

to

estimate

the

probability

that

of

five

randomly

selected

subscribers

watches

the

shopping

channel

at

least

once

a

week

Which

of

the

following

assignments

of

the

digits

through

would

be

appropriate

for

modeling

an

individual

subscribers

behavior

in

this

simulation

A

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

B

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

C

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

D

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

ignore

digits

and

E

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

A

Assign

as

watching

the

shopping

channel

at

least

once

a

week

and

and

as

not

watching

The

number

of

sweatshirts

a

vendor

sells

daily

has

the

following

probability

distribution

Number

f

Sweatshirts

x

P

x

If

each

sweatshirt

sells

for

what

is

the

expected

daily

total

dollar

amount

taken

in

by

the

vendor

from

the

sale

of

sweatshirts

A

B

c

D

E

D

The

correlation

two

scores

X

and

Y

equals

If

both

the

X

scores

and

the

Y

scores

are

converted

to

zscores

then

the

correlation

between

the

zscores

for

X

and

the

zscores

for

Y

would

be

A

B

c

D

E

E

Suppose

that

the

distribution

of

a

set

of

scores

has

a

mean

of

and

a

standard

deviation

of

If

is

added

to

each

score

what

will

be

the

mean

and

the

standard

deviation

of

the

distribution

of

new

scores

Mean

Standard

Deviation

A

B

C

D

A

A

test

engineer

wants

to

estimate

the

mean

gas

mileage

g

in

miles

per

gallon

for

a

particular

model

of

automobile

Eleven

of

these

cars

are

subjected

to

a

road

test

and

the

gas

rrfileage

is

computed

for

each

car

A

dotplot

of

the

gasmileage

values

is

roughly

symmetrical

and

has

no

outliers

The

mean

and

standard

deviation

of

these

values

are

and

respectively

Assuming

that

these

automobiles

can

be

considered

a

simple

random

sample

of

cars

of

this

model

which

of

the

following

is

a

correct

statement

A

A

confidence

interval

for

mean

is

x

A

confidence

interval

for

Iz

is

x

C

A

confidence

interval

for

Ix

is

x

D

A

confidence

interval

for

t

is

x

The

results

can

not

be

trusted

the

sample

is

too

small

A

A

confidence

interval

for

mean

is

x

A

volunteer

for

a

mayoral

candidate

s

campaign

peridically

cnducts

plls

t

estimate

the

prprtin

f

peple

in

the

city

who

are

planning

to

vote

for

this

candidate

in

the

upcoming

election

Two

weeks

before

the

election

the

volunteer

plans

to

double

the

sample

size

in

the

polls

The

main

purpose

of

this

is

to

A

reduce

nonresponse

bias

B

reduce

the

effects

of

confounding

variables

C

reduce

bias

due

to

the

interviewer

effect

D

decrease

the

variability

in

the

population

E

decrease

the

standard

deviation

of

the

sampling

distribution

of

the

sanple

propo

E

decrease

the

standard

deviation

of

the

sampling

distribution

of

the

sanple

propo

The

lengths

of

individual

shellfish

in

a

population

of

shellfish

are

approximately

normally

distributed

with

mean

centimeters

and

standard

deviation

centimeter

Which

of

the

following

is

the

shortest

interval

that

contains

approximately

shellfish

lengths

A

cm

to

cm

B

cm

to

cm

C

cm

to

cm

D

cm

to

cm

E

cm

to

cm

D

cm

to

cm

The

following

twoway

table

resulted

from

classifying

each

individual

in

a

random

sample

of

residents

of

a

small

city

according

to

level

of

education

with

categories

earned

at

least

a

high

school

diploma

and

did

not

earn

a

high

school

diploma

and

employment

status

with

categories

employed

time

and

not

employed

full

time

Employed

full

time

Not

employed

full

time

Total

Earned

at

least

a

high

school

diploma

Did

not

earn

a

high

school

diploma

Total

If

the

hypothesis

of

no

association

between

level

of

education

and

employment

status

is

true

which

of

the

following

expressions

gives

the

expected

number

who

earned

at

least

a

high

school

diploma

and

who

are

employed

full

time

A

B

C

D

E

B

The

manager

of

a

factory

wants

to

compare

the

mean

number

of

units

assembled

per

employee

in

a

week

for

two

new

assembly

techniques

Two

hundred

employees

from

the

factory

are

randomly

selected

and

each

is

randomly

assigned

to

one

of

the

two

techniques

After

teaching

employees

one

technique

and

employees

the

other

technique

the

manager

records

the

number

of

units

each

of

the

employees

assembles

in

one

week

Which

of

the

following

would

be

the

most

appropriate

inferential

statistical

test

in

this

situation

A

Onesample

ztest

B

Twosample

ttest

C

Paired

ttest

D

Chisquare

goodnessoffit

test

E

Onesample

ttest

B

Twosample

ttest

A

random

sample

has

been

taken

from

a

population

A

statistician

using

this

sample

needs

to

decide

whether

to

construct

a

percent

confidence

interval

for

the

population

mean

or

a

percent

confidence

interval

for

the

population

mean

How

will

these

intervals

differ

A

The

percent

confidence

interval

will

not

be

as

wide

as

the

percent

confidence

interval

B

The

percent

confidence

interval

will

be

wider

than

the

percent

confidence

interval

C

Which

interval

is

wider

will

depend

on

how

large

the

sample

is

D

Which

interval

is

wider

will

depend

on

whether

the

sample

is

unbiased

E

Which

interval

is

wider

will

depend

on

whether

a

zstatistic

or

a

tstatistic

is

used

A

The

percent

confidence

interval

will

not

be

as

wide

as

the

percent

confidence

interval

The

boxplots

shown

above

summarize

two

data

sets

I

and

II

Based

on

the

boxplots

which

of

the

following

statements

about

these

two

data

sets

CAN

NOT

be

justified

A

The

range

of

data

set

I

is

equal

to

the

range

of

data

set

II

B

The

interquartile

range

of

data

set

I

is

equal

to

the

interquartile

range

of

data

set

II

C

The

median

of

data

set

I

is

less

than

the

median

of

data

set

II

D

Data

set

I

and

data

set

II

have

the

same

number

of

data

points

E

About

of

the

values

in

data

set

II

are

greater

than

or

equal

to

about

of

the

values

in

data

set

I

D

Data

set

I

and

data

set

II

have

the

same

number

of

data

points

A

high

school

statistics

class

wants

to

conduct

a

survey

to

determine

what

percentage

of

students

in

the

school

would

be

willing

to

pay

a

fee

for

participating

in

afterschool

activities

Twenty

students

are

randomly

selected

from

each

of

the

freshman

sophomore

junior

and

senior

classes

to

complete

the

survey

This

plan

is

an

example

of

which

type

of

sampling

A

Cluster

B

Convenience

C

Simple

random

D

Stratified

random

E

Systematic

D

Stratified

random

Jason

wants

to

determine

how

age

and

gender

are

related

to

political

party

preference

in

his

town

Voter

registration

lists

are

stratified

by

gender

and

agegroup

Jason

selects

a

simple

random

sample

of

men

from

the

to

agegroup

and

records

their

age

gender

and

party

registration

Democratic

Republican

neither

He

also

selects

an

independent

simple

random

sample

of

women

from

the

to

agegroup

and

records

the

same

information

Of

the

following

which

is

the

most

important

observation

about

Jasons

plan

A

The

plan

is

well

conceived

and

should

serve

the

intended

purpose

B

His

samples

are

too

small

C

He

should

have

used

equal

sample

sizes

D

He

should

have

randomly

selected

the

two

age

groups

instead

of

choosing

them

nonrandomly

E

He

will

be

unable

to

tell

whether

a

difference

in

party

affiliation

is

related

to

differences

in

age

or

to

the

difference

in

gender

E

He

will

be

unable

to

tell

whether

a

difference

in

party

affiliation

is

related

to

differences

in

age

or

to

the

difference

in

gender

A

least

squares

regression

line

was

fitted

to

the

weights

in

pounds

versus

age

in

months

of

a

group

of

many

young

children

The

equation

of

the

line

is

where

is

the

predicted

weight

and

t

is

the

age

of

child

A

child

in

this

group

has

an

actual

weight

of

pounds

Which

of

the

following

is

the

residual

weight

in

pounds

for

this

child

A

B

C

D

E

B

Which

of

the

following

statements

is

are

true

about

the

tdistribution

with

k

degrees

of

freedom

I

The

tdistribution

is

symmetric

II

The

tdistribution

with

k

degrees

of

freedom

has

a

smaller

variance

than

the

tdistribution

with

k

degrees

of

freedom

III

The

tdistribution

has

a

larger

variance

than

the

standard

normal

z

distribution

A

I

only

B

II

only

C

III

only

D

I

and

II

E

I

and

III

E

I

and

III

Brown

Eyes

Green

Eyes

Blue

Eyes

A

geneticist

hypothesizes

that

half

of

a

given

population

will

have

brown

eyes

and

the

remaining

half

will

be

split

evenly

between

blue

and

greeneyed

people

In

a

random

sample

of

people

from

this

population

the

individuals

are

distributed

as

shown

in

the

table

above

What

is

the

value

of

the

statistic

for

the

goodness

of

fit

test

on

these

data

A

Less

than

B

At

least

but

less

than

C

At

least

but

less

than

D

At

least

but

less

than

E

At

least

B

At

least

but

less

than

A

small

town

employs

salaried

nonunion

employees

Each

employee

receives

an

annual

salary

increase

of

between

and

based

on

a

performance

review

by

the

mayors

staff

Some

employees

are

members

of

the

mayors

political

party

and

the

rest

are

not

Students

at

the

local

high

school

form

two

lists

A

and

B

one

for

the

raises

granted

to

employees

who

are

in

the

mayors

party

and

the

other

for

raises

granted

to

employees

who

are

not

They

want

to

display

a

graph

or

graphs

of

the

salary

increases

in

the

student

newspaper

that

readers

can

use

to

judge

whether

the

two

groups

of

employees

have

been

treated

in

a

reasonably

equitable

manner

Which

of

the

following

displays

is

least

likely

to

be

useful

to

readers

for

this

purpose

A

Backtoback

stemplots

of

A

and

B

B

Scatterplot

of

B

versus

A

C

Parallel

boxplots

of

A

and

B

D

Histograms

of

A

and

B

that

are

drawn

to

the

same

scale

E

Dotplots

of

A

and

B

that

are

drawn

to

the

same

scale

B

Scatterplot

of

B

versus

A

Dependent

variable

Printing

Time

Source

Sum

of

Squares

df

Mean

Square

Fratio

Regression

Residual

Variable

Coefficient

se

of

Coeff

tratio

prob

Constant

Size

Rsquared

Rsquared

adjusted

s

with

degrees

of

freedom

Which

of

the

following

should

be

used

to

compare

a

percent

confidence

interval

for

the

slope

of

the

regression

line

A

x

B

x

C

x

D

x

E

x

A

x

A

study

of

existing

records

of

automobile

accidents

involving

children

in

Michigan

found

that

about

percent

of

children

who

were

wearing

a

seatbelt

group

SB

were

injured

and

that

about

percent

of

children

who

were

not

wearing

a

seatbelt

group

NSB

were

injured

Which

of

the

following

statements

should

NOT

be

included

in

a

summary

report

about

this

study

A

Driver

behavior

may

be

a

potential

confounding

factor

B

The

childs

location

in

the

car

may

be

a

potential

confounding

factor

C

This

study

was

not

an

experiment

and

causeandeffect

inferences

are

not

warranted

D

This

study

demonstrates

clearly

that

seat

belts

save

children

from

injury

E

Concluding

that

seatbelts

save

children

from

injury

is

risky

at

least

until

the

study

is

independently

replicated

D

This

study

demonstrates

clearly

that

seat

belts

save

children

from

injury

Which

of

the

following

statements

is

true

for

two

events

each

with

probability

greater

than

A

If

the

events

are

mutually

exclusive

they

must

be

independent

B

If

the

events

are

independent

they

must

be

mutually

exclusive

C

If

the

events

are

not

mutually

exclusive

they

must

be

independent

D

If

the

events

are

not

independent

they

must

be

mutually

exclusive

E

If

the

events

are

mutually

exclusive

they

can

not

be

independent

E

If

the

events

are

mutually

exclusive

they

can

not

be

independent

A

consulting

statistician

reported

the

results

from

a

learning

experiment

to

a

psychologist

The

report

stated

that

on

one

particular

phase

of

the

experiment

a

statistical

test

result

yielded

a

pvalue

of

Based

on

this

pvalue

which

of

the

following

conclusions

should

the

psychologist

make

A

The

test

was

statistically

significant

because

a

pvalue

of

is

greater

than

a

significance

level

of

B

The

test

was

statistically

significant

because

p

and

this

is

greater

than

a

significance

level

of

C

The

test

was

not

statistically

significant

because

times

and

that

is

less

than

D

The

test

was

not

statistically

significant

because

if

the

hypothesis

is

true

one

could

expect

to

get

a

test

statistic

at

least

as

extreme

as

that

observed

of

the

time

E

The

test

was

not

statistically

significant

because

if

the

hypothesis

is

true

one

could

expect

to

get

a

test

statistic

at

least

as

extreme

as

that

observed

of

the

time

D

The

test

was

not

statistically

significant

because

if

the

hypothesis

is

true

one

could

expect

to

get

a

test

statistic

at

least

as

extreme

as

that

observed

of

the

time

A

new

medication

has

been

developed

to

treat

sleeponset

insomnia

difficulty

in

falling

asleep

Researchers

want

to

compare

this

drug

to

a

drug

that

has

been

used

in

the

past

by

comparing

the

length

of

time

it

takes

subjects

to

fall

asleep

Of

the

following

which

is

the

best

method

for

obtaining

this

information

A

Have

subjects

choose

which

drug

they

are

willing

to

use

then

compare

the

results

B

Assign

the

two

drugs

to

the

subjects

on

the

basis

of

their

past

sleep

history

without

randomization

then

compare

the

results

C

Give

the

new

drug

to

all

subjects

on

the

first

night

Give

the

old

drug

to

all

subjects

on

the

second

night

Compare

the

results

D

Randomly

assign

the

subjects

to

two

groups

giving

the

new

drug

to

one

group

and

no

drug

to

the

other

group

and

then

compare

the

results

E

Randomly

assign

the

subjects

to

two

groups

giving

the

new

drug

to

one

group

and

the

old

drug

to

the

other

group

and

then

compare

the

results

E

Randomly

assign

the

subjects

to

two

groups

giving

the

new

drug

to

one

group

and

the

old

drug

to

the

other

group

and

then

compare

the

results

A

quality

control

inspector

must

verify

whether

a

machine

that

packages

snack

foods

is

working

correctly

The

inspector

will

randomly

select

a

sample

of

packages

and

weigh

the

amount

of

snack

food

in

each

Assume

that

the

weights

of

food

in

packages

filled

by

the

machine

have

a

standard

deviation

of

ounce

An

estimate

of

the

mean

amount

of

snack

food

in

each

package

must

be

reported

with

percent

confidence

and

a

margin

of

error

of

no

more

than

ounce

What

would

be

the

minimum

sample

size

for

the

number

of

packages

the

inspector

must

select

A

B

C

D

E

D

The

figure

above

shows

a

cumulative

relative

frequency

histogram

of

scores

on

a

test

given

in

an

AP

Statistics

class

Which

of

the

following

conclusions

can

be

made

from

the

graph

A

There

is

greater

variability

in

the

lower

test

scores

than

in

the

higher

test

scores

B

The

median

test

score

is

less

than

C

Sixty

percent

of

the

students

had

test

scores

above

D

If

the

passing

score

is

most

students

did

not

pass

the

test

E

The

horizontal

nature

of

the

graph

for

the

test

scores

of

and

below

indicates

that

those

scores

occurred

most

frequently

A

There

is

greater

variability

in

the

lower

test

scores

than

in

the

higher

test

scores

Two

measures

x

and

y

were

taken

on

subjects

The

first

of

two

regressions

Regression

I

yielded

and

had

the

following

residual

plot

The

second

regression

Regression

II

yielded

and

had

the

following

residual

plot

Which

of

the

following

conclusions

is

best

supported

by

the

evidence

above

A

There

is

a

linear

relationship

between

x

and

y

and

Regression

I

yields

a

better

fit

B

There

is

a

linear

relationship

between

x

and

y

and

Regression

II

yields

a

better

fit

C

There

is

a

negative

correlation

between

x

and

y

D

There

is

a

nonlinear

relationship

between

x

and

y

and

Regression

I

yields

a

better

fit

E

There

is

a

nonlinear

relationship

between

x

and

y

and

Regression

II

yields

a

better

fit

E

There

is

a

nonlinear

relationship

between

x

and

y

and

Regression

II

yields

a

better

fit

The

analysis

of

a

random

sample

of

households

in

a

suburb

of

a

large

city

indicates

that

a

percent

confidence

interval

for

the

mean

family

income

is

Could

this

information

be

used

to

conduct

a

test

of

the

hypothesis

Ho

mean

against

the

alternative

hypothesis

Ha

mean

at

the

alpha

level

of

significance

A

No

because

the

value

of

std

dev

is

not

known

B

No

because

it

is

not

known

whether

the

data

are

normally

distributed

C

No

because

the

entire

data

set

is

needed

to

do

this

test

D

Yes

since

is

not

contained

in

the

percent

interval

the

hypothesis

would

be

rejected

in

favor

of

the

alternative

and

it

could

be

concluded

that

the

mean

family

income

is

significantly

different

from

at

the

alpha

level

E

Yes

since

is

not

contained

in

the

percent

interval

the

hypothesis

would

not

be

rejected

and

it

could

be

concluded

that

the

mean

family

income

is

significantly

different

from

at

the

alpha

level

D

Yes

since

is

not

contained

in

the

percent

interval

the

hypothesis

would

be

rejected

in

favor

of

the

alternative

and

it

could

be

concluded

that

the

mean

family

income

is

significantly

different

from

at

the

alpha

level

The

population

has

mean

and

standard

deviation

When

sampling

with

replacement

there

are

different

possible

ordered

samples

of

size

that

can

be

selected

from

this

population

The

mean

of

each

of

these

samples

is

computed

For

example

of

the

samples

is

which

has

a

mean

of

The

distribution

of

the

sample

means

has

its

own

mean

and

its

own

standard

deviation

Which

of

the

following

statements

is

true

A

mean

and

SD

B

mean

and

SD

C

mean

and

SD

D

mean

E

mean

C

mean

and

SD

A

wildlife

biologist

is

interested

in

the

relationship

between

the

number

of

chirps

per

minute

for

crickets

y

and

temperature

Based

on

the

collected

data

the

least

squares

regression

line

is

where

x

is

the

number

of

degrees

Fahrenheit

by

which

the

temperature

exceeds

degrees

Which

of

the

following

best

describes

the

meaning

of

the

slope

of

the

least

squares

regression

line

A

For

each

increase

in

temperature

of

F

the

estimated

number

of

chirps

per

minute

increases

by

B

For

each

increase

in

temperature

of

F

the

estimated

number

of

chirps

per

minute

increases

by

C

For

each

increase

of

one

chirp

per

minute

there

is

an

estimated

increase

in

temperature

of

F

D

For

each

increase

of

one

chirp

per

minute

there

is

an

estimated

increase

in

temperature

of

F

E

The

slope

has

no

meaning

because

the

units

of

measure

for

x

and

y

are

not

the

same

B

For

each

increase

in

temperature

of

F

the

estimated

number

of

chirps

per

minute

increases

by

In

a

carnival

game

a

person

can

win

a

prize

by

guessing

which

one

of

identical

boxes

contains

the

prize

After

each

guess

if

the

prize

has

been

won

a

new

prize

is

randomly

placed

in

one

of

the

boxes

If

the

prize

has

not

been

won

then

the

prize

is

again

randomly

placed

in

one

of

the

boxes

If

a

person

makes

guesses

what

is

the

probability

that

the

person

wins

a

prize

exactly

times

A

B

C

D

E

choose

E

choose

An

engineer

for

the

Allied

Steel

Company

has

the

responsibility

of

estimating

the

mean

carbon

content

of

a

particular

days

steel

output

using

a

random

sample

of

rods

from

that

days

output

The

actual

population

distribution

of

carbon

content

is

not

known

to

be

normal

but

graphic

displays

of

the

engineers

sample

results

indicate

that

the

assumption

of

normality

is

not

unreasonable

The

process

is

newly

developed

and

there

are

no

historical

data

on

the

variability

of

the

process

In

estimating

this

days

mean

carbon

content

the

primary

reason

the

engineer

should

use

a

tconfidence

interval

rather

than

a

A

is

estimating

the

population

mean

using

the

sample

mean

B

is

using

the

sample

variance

as

an

estimate

of

the

population

variance

C

is

using

data

rather

than

theory

to

judge

that

the

carbon

content

is

normal

D

is

using

data

from

a

specific

day

only

E

has

a

small

sample

and

a

zconfidence

interval

should

never

be

used

with

a

small

sample

B

is

using

the

sample

variance

as

an

estimate

of

the

population

variance

Each

of

laboratory

rats

has

available

both

plain

water

and

a

mixture

of

water

and

caffeine

in

their

cages

After

hours

two

measures

were

recorded

for

each

rat

the

amount

of

caffeine

the

rat

consumed

X

and

the

rats

blood

pressure

Y

The

correlation

between

X

and

Y

was

Which

of

the

following

conclusions

is

justified

on

the

basis

of

this

study

A

The

correlation

between

X

and

Y

in

the

population

of

rats

is

also

B

If

the

rats

stop

drinking

the

watercaffeine

mixture

this

would

cause

a

reduction

in

their

blood

pressure

C

About

percent

of

the

variation

in

blood

pressure

can

be

explained

by

a

linear

relationship

between

blood

pressure

and

caffeine

consumed

D

Rats

with

lower

blood

pressure

do

not

like

the

watercaffeine

mixture

as

much

as

do

rats

with

higher

blood

pressure

E

Since

the

correlation

is

not

very

high

the

relationship

between

the

amount

of

caffeine

consumed

and

blood

pressure

is

not

linear

C

About

percent

of

the

variation

in

blood

pressure

can

be

explained

by

a

linear

relationship

between

blood

pressure

and

caffeine

consumed

In

a

test

of

the

hypothesis

Ho

mean

versus

Ha

mean

the

power

of

the

test

when

mean

would

be

greatest

for

which

of

the

following

choices

of

sample

size

n

and

significance

level

alpha

A

n

alpha

B

n

alpha

C

n

alpha

D

n

alpha

E

It

can

not

be

determined

from

the

information

given

C

n

alpha

An

urn

contains

exactly

three

balls

numbered

and

respectively

Random

samples

of

two

balls

are

drawn

from

the

urn

with

replacement

The

average

where

and

are

the

numbers

on

the

selected

balls

is

recorded

after

each

drawing

Which

of

the

following

describes

the

sampling

distribution

of

xbar

A

xbar

Prob

B

xbar

Prob

C

xbar

Prob

D

xbar

Prob

E

It

can

not

be

determined

from

the

information

given

B

xbar

Prob

A

simple

random

sample

procedure

produces

a

sample

mean

of

A

percent

confidence

interval

for

the

corresponding

population

mean

is

Which

of

the

following

statements

must

be

true

A

Ninetyfive

percent

of

the

population

measurements

fall

between

and

B

Ninetyfive

percent

of

the

sample

measurements

fall

between

and

C

If

samples

were

taken

of

the

sample

means

would

fall

between

and

D

P

xbar

E

If

mean

this

xbar

of

would

be

unlikely

to

occur

E

If

mean

this

xbar

of

would

be

unlikely

to

occur

Suppose

that

public

opinion

in

a

large

city

is

percent

against

increasing

taxes

to

support

the

public

school

system

If

a

random

sample

of

people

from

this

city

are

interviewed

what

is

the

approximate

probability

that

more

than

of

these

people

will

be

against

increasing

taxes

Which

of

the

following

setups

would

answer

the

question

P

z

As

lab

partners

Sally

and

Betty

collected

data

for

a

significance

test

Both

calculated

the

same

ztest

statistic

but

Sally

found

the

results

were

significant

at

the

alpha

level

while

Betty

found

that

the

results

were

not

When

checking

their

results

the

women

found

that

the

only

difference

in

their

work

was

that

Sally

used

a

twosided

test

while

Betty

used

a

onesided

test

Which

of

the

following

could

have

been

their

test

statistic

A

B

C

D

E

A

A

student

working

on

a

history

project

decided

to

find

a

percent

confidence

interval

for

the

difference

in

mean

age

at

the

time

of

election

to

office

for

former

American

Presidents

versus

former

British

Prime

Ministers

The

student

found

the

ages

at

the

time

of

election

to

office

for

the

members

of

both

groups

which

included

all

of

the

American

Presidents

and

all

of

the

British

Prime

Ministers

and

used

a

calculator

to

find

the

percent

confidence

interval

based

on

the

tdistribution

This

procedure

is

not

appropriate

in

this

context

because

A

the

sample

sizes

for

the

two

groups

are

not

equal

B

the

entire

population

was

measured

in

both

cases

so

the

actual

difference

in

means

can

be

computed

and

a

confidence

interval

should

not

be

used

C

election

to

office

take

place

at

different

intervals

in

the

two

countries

so

the

distribution

of

ages

can

not

be

the

same

D

ages

at

the

time

of

election

to

office

are

likely

to

be

skewed

rather

than

bellshaped

so

the

assumptions

for

using

this

confidence

interval

formula

are

not

valid

E

ages

at

the

time

of

election

to

office

are

likely

to

have

a

few

large

outliers

so

the

assumptions

for

using

this

confidence

interval

formula

are

not

valid

B

the

entire

population

was

measured

in

both

cases

so

the

actual

difference

in

means

can

be

computed

and

a

confidence

interval

should

not

be

used

The

statistics

below

provide

a

summary

of

the

distribution

of

heights

in

inches

for

a

simple

random

sample

of

young

children

Mean

inches

Median

inches

Standard

Deviation

inches

First

Quartile

inches

Third

Quartile

inches

About

children

in

the

sample

have

heights

that

are

A

less

than

inches

B

less

than

inches

C

between

and

inches

D

between

and

inches

E

more

than

inches

C

between

and

inches

In

which

of

the

following

situations

would

it

be

most

difficult

to

use

a

census

A

To

determine

what

proportion

of

licensed

bicycles

on

a

university

campus

have

lights

B

To

determine

what

proportion

of

students

in

a

high

school

support

wearing

uniforms

C

To

determine

what

proportion

of

registered

students

enrolled

in

a

college

are

employed

more

than

hours

each

week

D

To

determine

what

proportion

of

singlefamily

dwellings

in

a

small

town

have

twocar

garages

E

To

determine

what

proportion

of

fish

in

Lake

Michigan

are

bass

E

To

determine

what

proportion

of

fish

in

Lake

Michigan

are

bass

The

distribution

of

the

diameters

of

a

particular

variety

of

oranges

is

approximately

normal

with

a

standard

deviation

of

inch

How

does

the

diameter

of

an

orange

at

the

percentile

compare

with

the

mean

diameter

A

inch

below

the

mean

B

inch

below

the

mean

C

inch

above

the

mean

D

inch

above

the

mean

E

inch

above

the

mean

C

inch

above

the

mean

Independent

random

samples

of

luxury

cars

and

nonluxury

cars

in

a

certain

city

are

examined

to

see

if

they

have

bumper

stickers

Of

the

nonluxury

cars

have

bumper

stickers

and

of

the

luxury

cars

have

bumper

stickers

Which

of

the

following

is

a

percent

confidence

interval

for

the

difference

in

the

proportion

of

nonluxury

cars

with

bumper

stickers

and

the

proportion

of

luxury

cars

with

bumper

stickers

from

the

population

of

cars

represented

by

these

samples

A

x

rad

x

x

B

x

rad

x

x

C

x

rad

D

x

rad

E

x

rad

x

x

A

x

rad

x

x

A

safety

group

claims

that

the

mean

speed

of

drivers

on

a

highway

exceeds

the

posted

speed

limit

of

miles

per

hour

mph

To

investigate

the

safety

groups

claim

which

of

the

following

statements

is

appropriate

A

The

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

less

than

mph

B

The

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

greater

than

mph

C

The

alternative

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

greater

than

mph

D

The

alternative

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

less

than

mph

E

The

alternative

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

greater

than

or

equal

to

mph

C

The

alternative

hypothesis

is

that

the

mean

speed

of

drivers

on

this

highway

is

greater

than

mph

A

fair

coin

is

to

be

flipped

times

The

first

flips

land

heads

up

What

is

the

probability

of

heads

on

the

next

flip

of

this

coin

A

B

C

choose

x

D

x

E

B

The

stemplot

below

shows

the

yearly

earnings

per

share

of

stock

for

two

different

companies

over

a

sixteenyear

period

Company

A

Company

B

Which

of

the

following

statements

is

true

A

The

median

of

the

earnings

of

Company

A

is

less

than

the

median

of

the

earnings

of

the

Company

B

B

The

range

of

the

earnings

of

Company

A

is

less

than

the

range

of

the

earnings

of

Company

B

C

The

third

quartile

of

Company

A

is

smaller

than

the

third

quartile

of

Company

B

D

The

mean

of

the

earnings

of

Company

A

is

greater

than

the

mean

of

the

earnings

of

Company

B

E

The

interquartile

range

of

Company

A

is

twice

the

interquartile

range

of

Company

B

D

The

mean

of

the

earnings

of

Company

A

is

greater

than

the

mean

of

the

earnings

of

Company

B

Let

X

represent

a

random

variable

whose

distribution

is

normal

with

a

mean

of

and

a

standard

deviation

of

Which

of

the

following

is

equivalent

to

PX

A

PX

B

PX

C

PX

D

X

E

PX

C

PX

A

television

news

editor

would

like

to

know

how

local

registered

voters

would

respond

to

the

question

Are

you

in

favor

of

the

school

bond

measure

that

will

be

voted

on

in

an

upcoming

special

election

A

television

survey

is

conducted

during

a

break

in

the

evening

news

by

listing

two

telephone

numbers

side

by

side

on

the

screen

one

for

viewers

to

call

if

they

approve

of

the

bond

measure

and

the

other

to

call

if

they

disapprove

This

survey

method

could

produce

biased

results

for

a

number

of

reasons

Which

one

of

the

following

is

the

most

obvious

A

It

uses

a

stratified

sample

rather

than

a

simple

random

sample

B

People

who

feel

strongly

about

the

issue

are

more

likely

to

respond

C

Viewers

should

be

told

about

the

issues

before

the

survey

is

conducted

D

Some

registered

voters

who

call

might

not

vote

in

the

election

E

The

wording

of

the

question

is

biased

B

People

who

feel

strongly

about

the

issue

are

more

likely

to

respond

A

high

school

physics

teacher

was

conducting

an

experiment

with

his

class

on

the

length

of

time

it

will

take

a

marble

to

roll

down

a

sloped

chute

The

class

ran

repeated

trials

in

order

to

determine

the

relationship

between

the

length

in

centimeters

of

the

sloped

chute

and

the

time

in

seconds

for

the

marble

to

roll

down

the

chute

A

linear

relationship

was

observed

and

the

correlation

coefficient

was

After

discussing

their

results

the

teacher

instructed

the

students

to

convert

all

of

the

length

measurements

to

meters

but

leave

the

time

in

seconds

What

effect

will

this

A

Because

the

standard

deviation

of

the

lengths

in

meters

will

be

one

hundredth

of

the

standard

deviation

of

the

lengths

in

centimeters

the

correlation

will

decrease

by

one

hundredth

to

B

Because

the

standard

deviation

of

the

lengths

in

meters

will

be

one

hundredth

of

the

standard

deviation

of

the

lengths

in

centimeters

the

correlation

will

decrease

proportionally

to

C

Because

changing

from

centimeters

to

meters

does

not

affect

the

value

of

the

correlation

the

correlation

will

remain

D

Because

only

the

length

measurements

have

been

changed

the

correlation

will

decrease

substantially

E

Because

meters

are

a

much

more

common

measurement

for

length

in

determining

speed

the

linear

relationship

of

the

data

will

be

stronger

and

thus

the

correlation

will

increase

substantially

C

Because

changing

from

centimeters

to

meters

does

not

affect

the

value

of

the

correlation

the

correlation

will

remain

Julie

generates

a

sample

of

random

integers

between

and

inclusive

She

records

the

number

of

in

the

sample

She

repeats

this

process

more

times

recording

the

number

of

in

each

sample

What

kind

of

distribution

has

she

simulated

A

The

sampling

distribution

of

the

sample

proportion

with

n

and

p

B

The

sampling

distribution

of

the

sample

proportion

with

n

and

p

C

The

binomial

distribution

with

n

and

p

D

The

binomial

distribution

with

n

and

p

E

The

binomial

distribution

with

n

and

p

C

The

binomial

distribution

with

n

and

p

n

Mean

Median

Sample

I

Sample

II

The

table

above

shows

the

sample

size

the

mean

and

the

median

for

two

samples

of

measurements

What

is

the

median

for

the

combined

sample

of

measurements

A

B

C

x

x

D

x

x

E

It

can

not

be

determined

from

the

information

given

E

It

can

not

be

determined

from

the

information

given

Dan

a

trainer

at

the

Popular

Gym

was

interested

in

comparing

levels

of

physical

fitness

of

students

attending

a

nearby

community

college

and

those

attending

a

college

in

town

He

selected

a

random

sample

of

students

from

the

community

college

The

mean

and

standard

deviation

of

their

fitness

scores

were

and

respectively

Dan

also

selected

a

random

sample

of

students

from

a

college

The

mean

and

standard

deviation

of

their

fitness

scores

were

and

respectively

He

then

conducted

a

twosided

ttest

that

resulted

in

a

tvalue

of

Which

of

the

following

is

an

appropriate

conclusion

from

this

study

A

Because

the

sample

means

only

differed

by

the

population

means

are

not

significantly

different

B

Because

the

second

group

had

a

larger

standard

deviation

their

mean

fitness

score

is

significantly

higher

C

Because

the

second

group

had

a

larger

standard

deviation

the

mean

fitness

score

of

the

first

group

is

significantly

higher

D

Because

the

pvalue

is

less

than

α

the

mean

fitness

scores

for

the

two

groups

of

students

are

significantly

different

E

Because

the

pvalue

is

greater

than

α

the

mean

fitness

scores

for

the

two

groups

of

students

are

significantly

different

D

Because

the

pvalue

is

less

than

α

the

mean

fitness

scores

for

the

two

groups

of

students

are

significantly

different

A

researcher

wishes

to

test

a

new

drug

developed

to

treat

hypertension

high

blood

pressure

A

group

of

hypertensive

men

and

hypertensive

women

is

to

be

used

The

experimenter

randomly

assigns

of

the

men

and

of

the

women

to

the

placebo

and

assigns

the

rest

to

the

treatment

The

major

reason

for

separate

assignment

for

men

and

women

is

that

A

it

is

a

large

study

with

subjects

B

the

new

drug

may

affect

men

and

women

differently

C

the

new

drug

may

affect

hypertensive

and

nonhypertensive

people

differently

D

this

design

uses

matched

pairs

to

detect

the

newdrug

effect

E

there

must

be

an

equal

number

of

subjects

in

both

the

placebo

group

and

the

treatment

group

B

the

new

drug

may

affect

men

and

women

differently

The

histograms

below

represent

the

distribution

of

five

different

data

sets

each

containing

integers

from

through

inclusive

The

horizontal

and

vertical

scales

are

the

same

for

all

graphs

Which

graph

represents

the

data

set

with

the

largest

standard

deviation

these

marks

kinda

look

like

the

graphs

lol

A

B

C

D

E

D

Lynn

is

planning

to

fly

from

New

York

to

Los

Angeles

and

will

take

the

Airtight

Airlines

flight

that

leaves

at

AM

The

Web

site

she

used

to

make

her

reservation

states

that

the

probability

that

the

flight

will

arrive

in

Los

Angeles

on

time

is

Of

the

following

which

is

the

most

reasonable

explanation

for

how

that

probability

could

have

been

estimated

A

By

using

an

extended

weather

forecast

for

the

date

of

her

flight

which

showed

a

chance

of

bad

weather

B

By

making

assumptions

about

how

airplanes

work

and

factoring

all

of

those

assumptions

into

an

equation

to

arrive

at

the

probability

C

From

the

fact

that

of

all

airline

flights

arriving

in

California

arrive

on

time

D

From

the

fact

that

of

all

airline

flights

in

the

United

States

arrive

on

time

E

From

the

fact

that

on

all

previous

days

this

particular

flight

had

been

scheduled

it

had

arrived

on

time

of

those

days

E

From

the

fact

that

on

all

previous

days

this

particular

flight

had

been

scheduled

it

had

arrived

on

time

of

those

days

In

an

experiment

two

different

species

of

flowers

were

crossbred

The

resulting

flowers

from

this

crossbreeding

experiment

were

classified

by

color

of

flower

and

stigma

into

one

of

four

groups

as

shown

in

the

table

below

Flower

Type

Resulting

from

Crossbreeding

Number

of

Flowers

Observed

with

These

Colors

I

Magenta

lower

with

green

stigma

II

Magenta

flower

with

red

stigma

III

Red

flower

with

green

stigma

IV

Red

flower

with

red

stigma

A

biologist

expected

that

the

ratio

of

for

the

flower

types

IIIIIIIV

respectively

would

result

from

this

crossbreeding

experiment

From

the

data

above

a

chisquared

value

of

approximately

was

computed

Are

the

observed

results

inconsistent

with

the

expected

ratio

at

the

percent

level

of

significance

A

Yes

because

the

computed

chisquared

value

is

greater

than

the

critical

value

B

Yes

because

the

computed

chisquared

value

is

less

than

the

critical

value

C

No

because

the

computed

chisquared

value

is

less

than

the

critical

value

D

No

because

the

computed

chisquared

value

is

greater

than

the

critical

value

E

It

can

not

be

determined

because

some

of

the

expected

counts

are

not

large

enough

to

use

the

chisquared

test

A

Yes

because

the

computed

chisquared

value

is

greater

than

the

critical

value

One

hundred

people

were

interviewed

and

classified

according

to

their

attitude

toward

small

cars

and

their

personality

type

The

results

are

shown

in

the

table

below

Personality

Type

Type

A

Type

B

Total

Attitude

Positive

Toward

Neutral

Small

Cars

Negative

Total

Which

of

the

following

is

true

A

Of

the

three

attitude

groups

the

group

with

the

negative

attitude

has

the

highest

proportion

of

type

A

personality

types

B

Of

the

three

attitude

groups

the

group

with

the

neutral

attitude

has

the

highest

proportion

of

type

B

personality

types

C

For

each

personality

type

more

than

half

of

the

respondents

have

a

neutral

attitude

toward

small

cars

D

The

proportion

that

has

a

positive

attitude

toward

small

cars

is

higher

among

people

with

a

type

B

personality

type

than

among

people

with

a

type

A

personality

type

E

More

than

half

of

the

respondents

have

a

type

A

personality

type

and

a

positive

attitude

toward

small

cars

B

Of

the

three

attitude

groups

the

group

with

the

neutral

attitude

has

the

highest

proportion

of

type

B

personality

types

A

delivery

service

places

packages

into

large

containers

before

flying

them

across

the

country

These

filled

containers

vary

greatly

in

their

weight

Suppose

the

delivery

services

airplanes

always

transport

two

such

containers

on

each

flight

The

two

containers

are

chosen

so

their

combined

weight

is

close

to

but

does

not

exceed

a

specified

weight

limit

A

random

sample

of

flights

with

these

containers

is

taken

and

the

weight

of

each

of

the

two

containers

on

each

selected

flight

is

recorded

The

weights

of

the

two

containers

on

the

same

flight

A

will

have

a

correlation

of

B

will

have

a

negative

correlation

C

will

have

a

positive

correlation

that

is

less

than

D

will

have

a

correlation

of

E

can

not

be

determined

from

the

information

given

B

will

have

a

negative

correlation

Which

of

the

following

is

NOT

a

characteristic

of

stratified

random

sampling

A

Random

sampling

is

part

of

the

sampling

procedure

B

The

population

is

divided

into

groups

of

units

that

are

similar

on

some

characteristic

C

The

strata

are

based

on

facts

known

before

the

sample

is

selected

D

Each

individual

unit

in

the

population

belongs

to

one

and

only

one

of

the

strata

E

Every

possible

subset

of

the

population

of

the

desired

sample

size

has

an

equal

chance

of

being

selected

E

Every

possible

subset

of

the

population

of

the

desired

sample

size

has

an

equal

chance

of

being

selected

A

city

is

interested

in

building

a

waste

management

facility

in

a

certain

area

One

hundred

randomly

selected

residents

from

this

area

were

asked

Do

you

support

the

citys

decision

to

build

a

waste

management

facility

in

your

area

Of

the

residents

interviewed

said

no

said

yes

and

had

no

opinion

A

large

sample

zconfidence

interval

phat

zrad

was

constructed

from

these

data

to

estimate

the

proportion

of

this

areas

residents

who

support

building

a

waste

management

facility

in

their

area

Which

of

the

following

statements

is

correct

for

this

confidence

interval

A

This

confidence

interval

is

valid

because

a

sample

size

of

more

than

was

used

B

This

confidence

interval

is

valid

because

each

area

resident

was

asked

the

same

question

C

The

confidence

interval

is

valid

because

no

conditions

are

required

for

constructing

a

large

sample

confidence

interval

for

a

proportion

D

This

confidence

interval

is

not

valid

because

the

quantity

n

x

phat

is

too

small

E

This

confidence

interval

is

not

valid

because

no

opinion

was

included

as

a

response

category

for

the

question

D

This

confidence

interval

is

not

valid

because

the

quantity

n

x

phat

is

too

small

The

weights

of

a

population

of

adult

male

gray

whales

are

approximately

normally

distributed

with

a

mean

weight

of

kilograms

and

a

standard

deviation

of

kilograms

The

weights

of

a

population

of

adult

male

humpback

whales

are

approximately

normally

distributed

with

a

mean

weight

of

kilograms

and

a

standard

deviation

of

kilograms

A

certain

adult

male

gray

whale

weighs

kilograms

This

whale

would

have

the

same

standardized

weight

zscore

as

an

adult

male

humpback

whale

whose

weight

in

kilograms

is

equal

to

which

of

the

following

A

B

C

D

E

E

The

graphs

of

the

sampling

distributions

I

and

II

of

the

sample

mean

of

the

same

random

variable

for

samples

of

two

different

sizes

are

shown

below

Which

of

the

following

statements

must

be

true

about

the

sample

sizes

A

The

sample

size

of

I

is

less

than

the

sample

size

of

II

B

The

sample

size

of

I

is

greater

than

the

sample

size

of

II

C

The

sample

size

of

I

is

equal

to

the

sample

size

of

II

D

The

sample

size

does

not

affect

the

sampling

distribution

E

The

sample

sizes

can

not

be

compared

based

on

these

graphs

B

The

sample

size

of

I

is

greater

than

the

sample

size

of

II

The

histogram

below

displays

the

times

in

minutes

needed

for

each

chimpanzee

in

a

sample

of

to

complete

a

simple

navigational

task

It

was

determined

that

the

largest

observation

is

an

outlier

since

Which

of

the

following

boxplots

could

represent

the

information

in

the

histogram

too

many

graphs

that

I

cant

type

out

here

A

B

C

D

E

D

the

boxplot

with

the

interquartile

range

from

to

about

and

the

outlier

at

median

at

or

so

When

performing

a

test

of

significance

about

a

population

mean

a

tdistribution

instead

of

a

normal

distribution

is

often

utilized

Which

of

the

following

is

the

most

appropriate

explanation

for

this

A

The

sample

size

is

not

large

enough

to

assume

that

the

population

distribution

is

normal

B

The

sample

does

not

follow

a

normal

distribution

C

There

is

an

increase

in

the

variability

of

the

test

statistic

due

to

estimation

of

the

population

standard

deviation

D

The

sample

standard

deviation

is

unknown

E

The

population

standard

deviation

is

too

large

C

There

is

an

increase

in

the

variability

of

the

test

statistic

due

to

estimation

of

the

population

standard

deviation

Random

variable

X

is

normally

distributed

with

mean

and

standard

deviation

and

random

variable

Y

is

normally

distributed

with

mean

and

standard

deviation

If

X

and

Y

are

independent

which

of

the

following

describes

the

distribution

of

Y

X

A

Normal

with

mean

and

standard

deviation

B

Normal

with

mean

and

standard

deviation

C

Normal

with

mean

and

standard

deviation

D

Normal

with

mean

and

standard

deviation

E

Normal

with

mean

and

standard

deviation

C

Normal

with

mean

and

standard

deviation

A

tstatistic

was

used

to

conduct

a

test

of

the

hypothesis

μ

against

the

alternative

Ha

μ

The

pvalue

was

A

twosided

confidence

interval

for

μ

is

to

be

constructed

Of

the

following

which

is

the

largest

level

of

confidence

for

which

the

confidence

interval

will

NOT

contain

A

confidence

B

confidence

C

confidence

D

confidence

E

confidence

B

confidence

Student

Height

Arm

Span

The

table

above

shows

the

height

in

inches

and

the

arm

span

in

inches

for

randomly

selected

high

school

students

Which

of

the

following

significance

tests

should

be

used

to

determine

whether

a

linear

relationship

exists

between

height

and

arm

span

provided

the

assumptions

of

the

test

are

met

A

Twosample

ztest

B

Twosample

ttest

C

Chisquare

test

of

independence

D

Chisquare

goodnessoffit

test

E

ttest

for

slope

of

regression

line

E

ttest

for

slope

of

regression

line

A

botanist

is

studying

the

petal

lengths

measured

in

millimeters

of

two

species

of

lilies

The

boxplots

above

illustrate

the

distribution

of

petal

lengths

from

two

samples

of

equal

size

one

from

species

A

and

the

other

from

species

B

Based

on

these

boxplots

which

of

the

following

is

a

correct

conclusion

about

the

data

collected

in

this

study

A

The

interquartile

ranges

are

the

same

for

both

samples

B

The

range

for

species

B

is

greater

than

the

range

for

species

A

C

There

are

more

petal

lengths

that

are

greater

than

mm

for

species

A

than

there

are

for

species

B

D

There

are

more

petal

lengths

that

are

greater

than

mm

for

species

B

than

there

are

for

species

A

E

There

are

more

petal

lengths

that

are

less

than

mm

for

species

B

than

there

are

for

species

A

E

There

are

more

petal

lengths

that

are

less

than

mm

for

species

B

than

there

are

for

species

A

A

researcher

has

conducted

a

survey

using

a

simple

random

sample

of

registered

voters

to

create

a

confidence

interval

to

estimate

the

proportion

of

registered

voters

favoring

the

election

of

a

certain

candidate

for

mayor

Assume

that

a

sample

proportion

does

not

change

Which

of

the

following

best

describes

the

anticipated

effect

on

the

width

of

the

confidence

interval

if

the

researcher

were

to

survey

a

random

sample

of

rather

than

registered

voters

A

The

width

of

the

new

interval

would

be

about

onefourth

the

width

of

the

original

interval

B

The

width

of

the

new

interval

would

be

about

onehalf

the

width

of

the

original

interval

C

The

width

of

the

new

interval

would

be

about

the

same

width

as

the

original

interval

D

The

width

of

the

new

interval

would

be

about

twice

the

width

of

the

original

interval

E

The

width

of

the

new

interval

would

be

about

four

times

the

width

of

the

original

interval

B

The

width

of

the

new

interval

would

be

about

onehalf

the

width

of

the

original

interval

Automobile

brake

pads

are

either

metallic

or

nonmetallic

An

experiment

is

to

be

conducted

to

determine

whether

the

stopping

distance

is

the

same

for

both

types

of

brake

pads

In

previous

studies

it

was

determined

that

car

size

small

medium

large

is

associated

with

stopping

distance

but

car

type

sedan

wagon

coupe

is

not

associated

with

stopping

distance

The

experiment

would

be

best

done

A

by

blocking

on

car

size

B

by

blocking

on

car

type

C

by

blocking

on

stopping

distance

D

by

blocking

on

brake

pad

type

E

without

blocking

A

by

blocking

on

car

size

An

independent

research

firm

conducted

a

study

of

randomly

selected

children

who

were

participating

in

a

program

advertised

to

improve

mathematics

skills

The

results

showed

no

statistically

significant

improvement

in

mathematics

skills

using

α

The

program

sponsors

complained

that

the

study

had

insufficient

statistical

power

Assuming

that

the

program

is

effective

which

of

the

following

would

be

an

appropriate

method

for

increasing

power

in

this

context

A

Use

a

twosided

test

instead

of

a

onesided

test

B

Use

a

onesided

test

instead

of

a

twosided

test

C

Use

α

instead

of

α

D

Decrease

the

sample

size

to

children

E

Decrease

the

sample

size

to

children

E

Decrease

the

sample

size

to

children

Five

estimators

for

a

parameter

are

being

evaluated

The

true

value

of

the

parameter

is

Simulations

of

random

samples

each

of

size

n

are

drawn

from

the

population

For

each

simulated

sample

the

five

estimates

are

computed

The

histograms

below

display

the

simulated

sampling

distributions

for

the

five

estimators

Which

simulated

sampling

distribution

is

associated

with

the

best

estimator

for

this

parameter

cant

include

the

histograms

in

the

answer

options

A

Estimator

A

B

Estimator

B

C

Estimator

C

D

Estimator

D

E

Estimator

E

B

Estimator

B

A

planning

board

in

Elm

County

is

interested

in

estimating

the

proportion

of

its

residents

that

are

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

that

county

A

random

sample

of

Elm

County

residents

was

selected

All

of

the

selected

residents

were

asked

Are

you

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

your

county

A

percent

confidence

interval

for

the

proportion

of

residents

in

favor

of

offering

incentives

was

calculated

to

be

Which

of

the

following

statements

is

correct

A

At

the

confidence

level

the

estimate

of

is

within

of

the

true

proportion

of

county

residents

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

the

county

B

At

the

confidence

level

the

majority

of

area

residents

are

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

the

county

C

In

repeated

sampling

of

sample

proportions

will

fall

in

the

interval

D

In

repeated

sampling

the

true

proportion

of

county

residents

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

the

county

will

fall

in

the

interval

E

In

repeated

sampling

of

the

time

the

true

proportion

of

county

residents

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

the

county

will

be

equal

to

A

At

the

confidence

level

the

estimate

of

is

within

of

the

true

proportion

of

county

residents

in

favor

of

offering

incentives

to

hightech

industries

to

build

plants

in

the

county

A

group

of

students

has

houseflies

in

a

large

container

and

needs

to

assign

to

each

of

the

three

groups

labeled

A

B

and

C

for

an

experiment

They

can

capture

the

flies

one

at

a

time

when

the

flies

enter

a

side

chamber

in

the

container

that

is

baited

with

food

Which

of

the

following

methods

will

be

most

likely

to

result

in

three

comparable

groups

of

houseflies

each

A

Label

the

first

flies

caught

as

Group

A

the

second

caught

as

group

B

and

the

third

caught

as

group

C

B

Write

the

letters

A

B

and

C

on

separate

slips

of

paper

Randomly

pick

one

of

the

slips

of

paper

and

assign

the

first

flies

caught

to

that

group

Pick

another

slip

and

assign

the

next

flies

caught

to

that

group

Assign

the

remaining

flies

to

the

remaining

group

C

When

each

fly

is

caught

roll

a

die

If

the

die

shows

an

even

number

the

fly

is

labeled

A

If

the

die

shows

an

odd

number

the

fly

is

labeled

B

When

flies

have

been

labeled

A

and

have

been

labeled

B

the

remaining

flies

are

then

labeled

C

D

Place

each

fly

in

its

own

numbered

container

numbered

from

to

in

the

order

that

it

was

caught

Write

the

numbers

from

to

on

slips

of

paper

put

the

slips

in

a

jar

and

mix

them

well

Pick

numbers

out

of

the

jar

Assign

the

flies

in

the

containers

with

those

numbers

to

group

A

Pick

more

numbers

and

assign

the

flies

in

the

containers

with

those

numbers

to

group

B

Assign

the

remaining

flies

to

group

C

E

When

each

fly

is

caught

roll

a

die

If

the

die

shows

a

or

the

fly

is

labeled

A

If

the

die

shows

a

or

the

fly

is

labeled

B

If

the

die

shows

a

or

the

fly

is

labeled

C

Repeat

this

process

for

all

flies

D

Place

each

fly

in

its

own

numbered

container

numbered

from

to

in

the

order

that

it

was

caught

Write

the

numbers

from

to

on

slips

of

paper

put

the

slips

in

a

jar

and

mix

them

well

Pick

numbers

out

of

the

jar

Assign

the

flies

in

the

containers

with

those

numbers

to

group

A

Pick

more

numbers

and

assign

the

flies

in

the

containers

with

those

numbers

to

group

B

Assign

the

remaining

flies

to

group

C

An

experiment

has

three

mutually

exclusive

outcomes

A

B

and

C

If

PA

PB

and

PC

which

of

the

following

must

be

true

I

A

and

C

are

independent

II

PA

and

B

III

PB

or

C

PB

PC

A

I

only

B

I

and

II

only

C

I

and

III

only

D

II

and

III

only

E

I

II

and

III

D

II

and

III

only

In

a

study

of

the

weights

of

college

athletes

player

weights

for

a

random

sample

of

baseball

players

BP

and

for

an

independent

random

sample

of

hockey

players

HP

were

compared

The

computer

output

shown

below

gives

the

result

of

a

test

of

μBP

μHP

versus

Ha

μBP

μHP

Which

of

the

following

is

the

best

conclusion

that

can

be

drawn

from

the

analysis

A

The

mean

weight

of

baseball

players

is

not

significantly

lower

than

the

mean

weight

of

hockey

players

at

the

level

B

The

mean

weight

of

baseball

players

is

not

significantly

lower

than

the

mean

weight

of

hockey

players

at

the

level

C

The

mean

weight

of

baseball

players

is

significantly

higher

than

the

mean

weight

of

hockey

players

at

the

level

D

The

mean

weight

of

baseball

players

is

significantly

lower

than

the

mean

weight

of

hockey

players

at

the

level

E

The

mean

weight

of

baseball

players

is

significantly

different

from

the

mean

weight

of

hockey

players

at

the

level

A

The

mean

weight

of

baseball

players

is

not

significantly

lower

than

the

mean

weight

of

hockey

players

at

the

level

A

game

of

chance

is

played

in

which

X

the

number

of

points

scored

in

each

game

has

the

distribution

shown

above

Which

of

the

following

is

true

for

the

sampling

distribution

of

the

sum

Y

of

the

scores

when

the

game

is

played

twice

A

Y

takes

on

values

with

respective

probabilities

and

B

Y

takes

on

values

according

to

a

binomial

distribution

with

mean

equal

to

C

Y

takes

on

values

with

respective

probabilities

and

D

Y

takes

on

values

according

to

a

binomial

distribution

with

mean

equal

to

E

Y

takes

on

values

with

respective

probabilities

and

E

Y

takes

on

values

with

respective

probabilities

and

A

polling

organization

asks

a

random

sample

of

registered

voters

which

of

two

candidates

they

plan

to

vote

for

in

an

upcoming

election

Candidate

A

is

preferred

by

respondents

Candidate

B

is

preferred

by

respondents

and

respondents

are

undecided

George

uses

a

large

sample

confidence

interval

for

two

proportions

to

estimate

the

difference

in

the

population

proportions

favoring

the

two

candidates

This

procedure

is

not

appropriate

because

A

the

two

sample

proportions

were

not

computed

from

independent

samples

B

the

sample

size

was

too

small

C

the

third

category

undecided

makes

the

procedure

invalid

D

the

sample

proportions

are

different

therefore

the

variances

are

probably

different

as

well

E

George

should

have

taken

the

difference

and

then

used

a

large

sample

confidence

interval

for

a

single

proportion

instead

A

the

two

sample

proportions

were

not

computed

from

independent

samples

Two

variables

x

and

y

were

measured

for

a

random

sample

of

subjects

and

two

separate

regression

models

were

fit

to

the

data

Least

squares

estimation

of

the

parameters

in

Model

A

yielded

the

following

equation

and

residual

plot

Least

squares

estimation

of

the

parameters

in

Model

B

yielded

the

following

equation

and

residual

plot

Which

of

the

following

conclusions

is

correct

A

Model

A

is

appropriate

since

the

relationship

between

x

and

y

is

linear

B

Model

B

is

appropriate

since

the

relationship

between

x

and

y

is

linear

C

Model

A

is

appropriate

since

the

relationship

between

log

x

and

log

y

is

linear

D

Model

A

is

appropriate

since

the

relationship

between

log

x

and

y

is

linear

E

Model

B

is

appropriate

since

the

relationship

between

x

and

log

y

is

linear

E

Model

B

is

appropriate

since

the

relationship

between

x

and

log

y

is

linear


Med Law and Ethics Ch 9 FLASHCARDS WRITE SPELL TEST MATCH GRAVITY Upgrade to remove ads Only 1month A death has occurred under normal circumstances and the body released to the funeral home Who is responsible for filing the death certificate with the state CLICK THE CARD TO FLIP IT the mortician CLICK THE ARROWS BELOW TO ADVANCE 1 25 Terms in this set 25 A death has occurred under normal circumstances and the body released to the funeral home Who is responsible for filing the death certificate with the state the mortician A division of medicine that incorporates law and medicine and involves medical issues or medical proof at trials having to do with malpractice crimes or accidents is called criminal medicine investigative medicine examiner medicine forensic medicine statistical medicine forensic medicine A person dies as a result of a carjacking Who is responsible for signing the death certificate for this individual the coroner A physician issues a medical prescription for a patient The correct term for this practice is prescribe A physician prescribes pentobarbital for a patient who is experiencing seizures Pentobarbital is an example of what schedule of drug Schedule II An obstetrician who delivers babies knows that all live births need to be recorded To which of the following agencies should these births be reported state registrar Certain sexually transmitted infections STIs must be reported whenever diagnosed Which of the following is not a reportable STI cervical cancer Examples of public data collected by law from physicians include births deaths rapes and assaults General regulations mandated by the Controlled Substances Act require physicians who purchase prescribe dispense administer or in any way handle controlled drugs to follow certain procedures Which of the following accurately describes one of these procedures the physician must keep records concerning the administering or dispensing of a controlled drug on file for two years Generally birth and death certificates are not required for fetal deaths occurring prior to what week of gestation 20th If a patient dies of natural causes while under his or her physicians care who is responsible for completion of the medical portion of the death certificate attending physician Samantha lives next door to a ninetyyearold woman named Ruth She usually sees Ruth every couple of days in her garden Recently Ruths son Joseph moved in with his mother Samantha has heard yelling and screaming coming from Ruths house and has not seen Ruth in several weeks When she goes over to visit Ruth Joseph answers the door and will not let Samantha in the house What should Samantha consider as a first step Report the problem to the elder abuse hotline The National Childhood Vaccine Injury Act of 1986 created the National Vaccine Injury Compensation Program VICP Which of the following was this legislation created to protect vaccine manufacturers The public official who investigates and holds inquests concerning those who die from unknown or violent causes is the coroner Who is responsible for gathering and filing many of the vital statistics collected by the states and the federal government health care practitioners Which of the following schedule of drugs are used strictly for research schedule I The state of Virginia checks all restaurants to make sure the conditions are sanitary This is an example of which of the following public health statutes In most states which of the following cases is not mandated as a reportable injury a physician suspects spousal abuse however the patient does not admit it occured Which of the following accurately describes the role of the coroner or medical examiner in the event of a violent death a medical examiner who is frequently a pathologist may order and perform an autopsy Which agency tests and approves prescription drugs before releasing them for public use food and drug administration Which of the following is an example of a state law that requires behavioral changes on the part of the public promoting the use of child safety seats Which of the following victims was the Laci and Conners Act passed to protect fetuses The states and the federal government collect vital statistics in the US that include births deaths marriages divorces and changes in civil status What is the main purpose for collection of this information to assess population trends and needs Which of the following examples of public health statutes is enforced by citations for noncompliance smoking bans Which of the following agencies registers physicians for the writing of prescriptions drug enforcement administration YOU MIGHT ALSO LIKE 25 terms MEDICAL LAW ETHICS CHAPTER 9 35 terms Medical Law and Ethics Chapter 9 25 terms Medical Law and Ethics Ch9 48 terms Med Law and Ethics Chapter 9 OTHER SETS BY THIS CREATOR 19 terms Bio 101 Unit 3 22 terms Bio 101 Unit 2 4 terms Bio 101 Unit 1 8 terms Chapter 15 THIS SET IS OFTEN IN FOLDERS WITH 25 terms Med Law Ch 12 25 terms Chapter 8 25 terms Med Law Ethics Ch 10 25 terms Med Law Ch 13

B I O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O O O O O B O O O O O O O B O O O B I O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O B I B O O O O B I O O


Chapter 15 Quiz FLASHCARDS WRITE SPELL TEST MATCH GRAVITY Upgrade to remove ads Only 1month Because trial courts sometimes make mistakes about questions of law the American legal system has followed the British practice by allowing CLICK THE CARD TO FLIP IT appeals CLICK THE ARROWS BELOW TO ADVANCE 1 25 Terms in this set 25 Because trial courts sometimes make mistakes about questions of law the American legal system has followed the British practice by allowing appeals Which term refers to a judges decision to adhere to the previous decisions of other judges precedent Which article of the Constitution establishes the judicial branch of government Article III What doesnt provide proper jurisdiction to have a case heard in federal court dispute over state law Which power held by the federal judiciary involves constitutional interpretation judicial review Which term refers to a request for review of a case directed to the US Supreme Court writ of certiorari Which term refers to a crucial step in civil trial procedure that grants each party access to relevant documents in preparation for trial discovery Which term refers to a specially empanelled group that decides whether the government has enough evidence to charge the suspect with a crime grand jury Which term refers to the method used to resolve MOST federal criminal cases plea bargain Supreme Court justices who disagree with the result reached by the majority can write ________ explaining why they believe the Courts decision was in error a dissenting opinion Which rule is used to decide if the Supreme Court will grant cert the rule of four Which famous case struck down the separatebutequal doctrine in regards to public schools Brown v Board of Education Under what circumstances can Congress simply overturn a courts decision if the courts decision is based on the meaning of the statute Who is responsible for confirming Supreme Court nominees the Senate Who was the only Supreme Court justice impeached by the House of Representatives Samuel Chase Which term refers to the ability of a US senator to block a presidential judicial nomination for a district court vacancy within the senators state senatorial courtesy Who appointed the first woman to the Supreme Court Ronald Reagan Who appointed the first Hispanic to serve on the US Supreme Court Barack Obama Which Supreme Court justices ethics were questioned following sexual harassment accusations Clarence Thomas Who was the first African American Supreme Court justice Thurgood Marshall The commerce clause is at the heart of which major Supreme Court case Gibbons v Ogden Which Supreme Court case ruled that African American people could not be citizens Dred Scott v Sandford Which Supreme Court case argued that Congress could not use the due process clause to give them authority over individuals only states United States v Cruikshank After the Court struck down several pieces of Franklin Roosevelts New Deal legislation how did he strike back He proposed a courtpacking plan that would have allowed him to appoint a new justice for every justice over age 70 who failed to resign Which case ended the 2000 presidential election Bush v Gore

B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O


Revel 2 Ch 3 FLASHCARDS WRITE SPELL TEST MATCH GRAVITY Upgrade to remove ads Only 1month Which public policy is most consistent with the principles of a unitary system of gov CLICK THE CARD TO FLIP IT setting national test standards for all elementary students across the country CLICK THE ARROWS BELOW TO ADVANCE 1 17

B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O


MSIS Chapter 10 Homework FLASHCARDS WRITE SPELL TEST MATCH GRAVITY Upgrade to remove ads Only 1month 1 28 Terms in this set 28 The output of a process may not conform to specifications even though the process may be statistically in control True The amount of inspection we choose can range from no inspection at all to inspecting each item numerous times True When a process is not centered its capability is measured in a slightly different way The symbol for this case is Cpk True Concluding that a process is out of control when it is not is known as a Type I error True Lowcost highvolume items often require more intensive inspection than other types of items False Tolerances represent the control limits we use on the charts False A run test checks a sequence of observations for randomness True Control limits used on process control charts are specifications established by design or customers False Control limits tend to be wider for more variable processes True A pchart is used to monitor the fraction of defectives in the output of a process True The purpose of control charts is to distinguish between random variation and assignable variation in the process The specification limit for a product is 8 cm and 10 cm A process that produces the product has a mean of 95 cm and a standard deviation of 02 cm What is the process capability Cpk 083 Which of the following relationships must always be incorrect Tolerances control limits process variability A timeordered plot of representative sample statistics is called an control chart Organizations should work to improve process capability so that quality control efforts can become more unnecessary The amount of inspection needed depends on __________ and __________ the costs of inspection the costs of passing on defective items Larger samples will require wider xbar control limits because there is more data False Large samples will lead to narrower control limits Control limits are based on multiples of the process standard deviation False The optimum level of inspection occurs when we catch at least 986 percent of the defects False An xbar control chart can only be valid if the underlying population it measures is a normal distribution False Attributes need to be measured whereas variable data can be counted False Quality control is making sure that processes are performing in an acceptable manner True Quality control tools are not really used to fix quality so much as they are used to alert when corrective action is needed The assurance that processes are performing in an acceptable manner is the focus of quality control The optimum level of inspection is where the total cost of inspection and defectives is minimum The process capability index Cp may mislead if I the process is not stable II the process output is not normally distributed III the process is not centered I II and III Which of the following quality control sample statistics indicates a quality characteristic that is an attribute proportion

O O O O O O O O O O O O O O O O O O O O O O O O B I I I O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O


Biology 226 FLASHCARDS WRITE SPELL TEST MATCH GRAVITY Upgrade to remove ads Only 1month Diplomonads CLICK THE CARD TO FLIP IT Most ancient lineage of prokaryotes Organisms contain modified mitochondria that do not have DND and electron transport chains Heterotrophic most of these are anaerobic Example giardia intestinalis parasite CLICK THE ARROWS BELOW TO ADVANCE 1 18 Terms in this set 18 Diplomonads Most ancient lineage of prokaryotes Organisms contain modified mitochondria that do not have DND and electron transport chains Heterotrophic most of these are anaerobic Example giardia intestinalis parasite Parabasalids Heterotroph An organism with modified mitochondria to generate energy anaerobically Partake in Endosymbosis Example Trichomonas vaginalis Eulenozoans Heterotrophs and Autotrophs Group of protists that have a crystaline rod of unknown function in their flagellum Example Typanosoma or Euglena Alveolates Heterotrophs and Autotrophs CHaracterized by membrane enclosed sacs just beneath the plasma membrane that help stablaize the cell and regulate water and iron content Examples dinoflagellates apicomplexans ciliates Dinoflagellates Autotrophs and Heterotrophs Common components of marine and freshwater phytoplankton Some reside within coral animals and can be in toxic blooms red tides Toxins produced are fatal to fish Example Gymnodinium Apicomplexans Parasites Parasites that are of animals and produce extreme cases of human diseases Examples Plasmodium Malaria Ciliates Heterotrophs feed with cilia Protists that use cilia to move and feed Nearly all of these are free living and have two nucleus The macronucleus and micronucleus for sexual reproduction Example Stentor Stramenopiles Heterotrophs and Autotrophs Protists named for hairy flagellum with hairlike projections and smooth flagellum Examples Diatoms Brown Algae and Water Molds Water Molds Decomposer and Heterotrophic Decompose plants and animals in freshwater habitats These are closely related to protists Example Downy Mildew Diatoms Autotrophic Unicellular organisms with a glassy cell wall that contains silica in two different halves that help to store food in chloroplasts and make themselves buoyant Brown Algae Autotrophic Large complex with brown coloring due to a pigment in their chloroplasts These are multicellular marine organisms Example Kelp and Seaweeds Amoebozoans Parasitic and Heterotrophic Organisms that move and feed by pseudopodia that are temporary extensions of the cell These are freelving and all have lobeshaped pseudopodia Examples Amoebas and Slime molds Amoebas Parasitic and Heterotrophic Use pseudopodia and are free living These are found in the mud deep in the rock or bottoms of aquatic environments Examples Parasite that causes amebic dysentery Slime Molds Decomposers Heterotrophic These are either cellular or plasmodium Plasmodium one mass of cytoplasm that is not divided by plasma membranes Feed through phagocytosis with pseudopodia Cellular solitary amebic cells that an be called together when food is scare to help the organisms survive Examples physaum and Dictyostelum Foraminiferans Heterotrophs Feed with pseudopodia and are marine and freshwater with porous shells made up of organic material with threadlike pseudopodia Contain a hard mineral skeleton called a test in which these extension extend Radiolarians Heterotrophs Mineralized support skeleton that is made of silica called a test These organisms settle in sediments in their habitat Red Algae Autotrophs Color comes from an accessory pigment that makes green softbodies by chalking cell walls This is important to reef building because it will help build up the coral reefs etc Green Algae Autotroph Contains chloroplasts and are the charophytes and chlaophtyes groups that are the closest relatives to plants Examples Chlamydomonas and Volvox

B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O