According to South Dakota Department of Health, the mean number of hours of TV viewing per week is higher among adult women than men. A current study showed women spent average of 36 hours per week watching TV and men 30 hours per week. Suppose that the distribution of hours watched follows the normal distribution for both groups, and that the standard deviation among the women is 4.8 hours and is 5.2 hours for the men.
a) What percent of the women watch TV less than 38 hours per week
b) What percent of the men watch TV more than 25 hours per week?
c) How many hours of TV do the three percent of women who watch the most TV per week watch? Find the comparable value for the men