Do male and female students study the same amount per week? In a recent year, 58 sophomore business students were surveyed at a large university that has more than 1,000 sophomore business students each year. The file Study Time contains the gender and the number of hours spent studying in a typical week for the sampled students.

a. At the 0.05 level of significance, is there a difference in the ­variance of the study time for male students and female ­students?

b. Using the results of (a), which t test is appropriate for comparing the mean study time for male and female students?

c. At the 0.05 level of significance, conduct the test selected in (b).

d. Write a short summary of your findings.