# 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.

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.

## Answer to relevant Questions

Data were collected on the weights of 25 male baseball players and 25 male soccer players. Assume that these are random samples from all college baseball and soccer players. Refer to the Mann-Whitney output. Assume the ...In Exercise 13.24 you compared credit card debts for college men and women using the Mann-Whitney test to compare medians. We'll use the same data again, but this time you will apply a randomization test to determine whether ...Refer to the following two histograms and QQ plots of the same data. a. Match each of the histograms with the corresponding QQ plot. Histogram 1 goes with QQ plot ____. Histogram 2 goes with QQ plot ____. b. Describe the ...Refer to the following two histograms and QQ plots of the same data. a. Match each of the histograms with the corresponding QQ plot. Histogram 1 goes with QQ plot ____. Histogram 2 goes with QQ plot ____. b. Describe the ...A random sample of 29 community college students were asked their height in inches and the height of their biological parent of the same gender. The output of a regression analysis for predicting student height from parent ...Post your question

0