Word Counts Use the sample data from couples listed in Exercise 1, and use a 0.05 significance level to test the claim that among couples, females are more talkative than males.
Exercise 1
Word Counts Listed below are the numbers of words (in thousands) males and females in randomly selected couples spoke in a day (based on data from “Are Women Really More Talkative Than Men?” by Mehl, Vazire, Ramirez-Esparza, Slatcher, and Pennebaker, Science, Vol. 317, No. 5834).
Male
9
25
16
21
15
8
14
19
8
14
Female
9
12
38
28
21
16
34
20
18
21
a. Are the two samples independent or dependent? Why?
b. Find the mean, median, mode, range, and standard deviation of the word counts for males. Express results with the appropriate units.
c. What is the level of measurement of the sample data? (nominal, ordinal, interval, ratio)