6.2.6 In a survey of introductory statistics students, an in- structor asked her students to report how many Facebook friends they had. Suppose that the intent is to study whether there is an...

Extracted text: 6.2.6 In a survey of introductory statistics students, an in- structor asked her students to report how many Facebook friends they had. Suppose that the intent is to study whether there is an association between number of Facebook friends and a person's sex.


Extracted text: Here are a few summary statistics about the data: Sample Sample size Sample Sample mean median SD Women 35 594.30 532 309.80 Men 13 405.60 485 228.40 f. In this context, which of the following is an (are) appro- priate statistic value(s) to compare men to women? Circle all that apply. A. 35 – 13 = 22 B. 594.30 – 405.60 = 188.70 C. 532 – 485 = 47 D. 309.80 – 228.40 = 81.40 Suppose that we want to use cards to carry out a randomiza- tion test of the appropriate hypotheses. g. How many cards will we need? Circle one. A. 35 B. 13 C. 48 D. Doesn't matter