Question: Time spent studying. A study compared the time spent studying by men and women. Students in a large first-year college class were asked how many minutes they studied on a typical weeknight. Here are the responses of random samples of 30 women and 30 men from the class:
(a) Summarize the data numerically and graphically.
(b) Use the Wilcoxon rank sum test to compare the men and women. Write a short summary of your results.
(c) Use a two-sample t test to compare the men and women. Write a short summary of your results.
(d) Which procedure is more appropriate for these data? Give reasons for your answer.