We will continue to examine media usage in two additional categories: e-mail hours per week and hours per day watching television. We compare usage among high school and college graduates from the GSS 2010.
Media Use Means and Standard Deviations for High School and College Graduates

a. Determine whether high school graduates have significantly lower e-mail hours per week than then college graduates. Test at the .05 alpha level.
b. Test whether there is a significant difference in hours of television viewing between high school and college graduates. Assume alpha = .01.

E-mail Hours Per Week Television Watching Hours per Day Mean 3.25 Standard Deviation 2.60 N 246 High School Graduates Mean-5.71 Standard Deviation 7.26 College Graduates Mean 7.32 Standard Deviation 7.23 N 41 Mean 2.41 Standard Deviation 1.74