The single-sample t-test compares the mean of the sample to a given number (which you supply). The dependent-sample t-test compares the difference in the means from the two variables to a given number (usually 0), while taking into account the fact that the scores are not independent.The independent samples t-test compares the difference in the means from the two groups to a given value (usually 0).he single sample t-test tests the null hypothesis that the population mean is equal to the given number specified using the option H0=. In our example, the t-value for variable write is 4.14 with 199 degrees of freedom.
Vermont had the second-highest median age, at 42.3 years. New Hampshire was third, with a median age of 42. Utah was the youngest state, with a median age of 29.9 years. Officials say among Maine counties, Lincoln is the oldest with a median age of 49.4 years. Androscoggin County was the youngest, at 40.5 years.
Carrie C. White was recognized by Guinness world records as the oldest person in the world at around the time of her 114th birthday in 1988. Carrie was a resident of Palatka, Florida nursing home. She was in a nursing home not because of age, but due to a nervous breakdown in 1909, which left her institutionalized. Carrie is another case of dispute, however her documentation seems to be in order enough to give her the title of worldâs oldest person between January 11th 1988 and February 14th 1991.