The mean height of 50 male students who showed above-average participation in college athletics was 68.2 inches (in) with a standard deviation of 2.5 in, while 50 male students who showed no interest...

The mean height of 50 male students who showed above-average
participation in college athletics was 68.2 inches (in) with a standard
deviation of 2.5 in, while 50 male students who showed no interest in such
participation had a mean height of 67.5 in with a standard deviation of
2.8 in. Test the hypothesis that male students who participate in college
athletics are taller than other male students at 0.1 level.