A statistics student who was interested in credit card debt asked a random sample of students for the total amount of their credit card debt. We eliminated the two women and the one man who had a debt of 0, which left 18 women and 19 men.

a. By looking at the histograms of the data, determine whether it would be appropriate to do a two-sample t-test using this data set. Explain.
b. Refer to the Minitab output. Which group had a higher median debt in this sample?
c. Refer to the Minitab output provided to test whether the typical credit card debt (as measured by the median) is different for men and women, using a significance level of 0.05.

10 6 4 0 2 4 6 8 10 12 Women's Debt (thousands of dollars) 8 0 0 2 4 6 8 10 12 Men's Debt (thousands of dollars) Mann-Whitney Test and CI: Women, Men N Median Women 18 725.0 Men 19 1250.0 Point estimate for ETA1-ETA2 is -212.0 95.3 Percent CI for ETA1-ETA2 is (-1100.0, 700.1) 322.5 The test is significant at 0.5635 level