Consider the given survey data collected from 1000 randomly selected Internet users. The data are in the file P4_5.XLS.

a. Find all Internet users in the sample who are either (1) married men between the ages of 21 and 40 (inclusive) who are employed and have more than a high school education and two or fewer children, or (2) married women between the ages of 21 and 40 (inclusive) who are employed and have more than a high school education and at least one child.

b. Characterize the distribution of annual incomes for the individuals who meet the conditions specified above. In particular, report the mean, median, and standard deviation for the resulting income distribution. Is this distribution skewed?

c. For those Internet users who satisfy the conditions specified above, compare the mean salary of the men with that of the women. Also, compare the standard deviation of the salaries earned by the men with that of the salaries earned by the women.