We want to use a 0.05 significance level to test the claim that a coin favors heads, and sample data consist of 7 heads in 8 tosses. We can’t use the normal approximation method because we violate the requirement that np ≥ 5 and nq ≥ 5. Use the binomial probability distribution to test the claim.
Answer to relevant QuestionsTest hypotheses When analyzing the last digits of telephone numbers in Port Jefferson, it is found that among 1000 randomly selected digits, 119 are zeros. If the digits are randomly selected, the proportion of zeros should ...The Chapter Problem for Chapter 3 includes the sample mean of the numbers of chocolate chips in 40 Chips Ahoy reduced fat cookies. The sample mean is f = 19.6 chocolate chips and the sample standard deviation is 3.8 ...Data Set 15 in Appendix B lists 48 different departure delay times (minutes) for American Airlines flights from New York (JFK) to Los Angeles. Negative departure delay times correspond to flights that departed early. The ...Listed below are speeds (mi/h) measured from southbound traffic on I-280 near Cupertino, California (based on data from SigAlert). This simple random sample was obtained at 3:30 p.m. on a weekday. Use a 0.05 significance ...When finding critical values, we sometimes need significance levels other than those available in Table. Some computer programs approximate critical t values by calculating where df = n – 1, e = 2.718, A = z(8 . df + 3)>(8 ...
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