Question

Bills Cell phone bills (rounded to the nearest dollar) for the most recent month for random samples of college men (M) and college women (F) were studied. Histograms for the numbers of dollars for men and women (A) and output from a Mann-Whitney test (B) are given.
a. Why would it be inappropriate to compare means with a t-test?
b. A student feels that women talk more on their phones than men and therefore have higher bills. Test this hypothesis at a 5% significance level.


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  • CreatedJuly 16, 2015
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