107 For each of the following, identify the target parameter as m1 - m2, p1 - p2, or s1 2 >s2 2 .

a. Comparison of average SAT scores of males and females.

b. Difference between mean waiting times at two supermarket checkout lanes

c. Comparison of proportions of Democrats and Republicans who favor the legalization of marijuana.

d. Comparison of variation in salaries of NBA players picked in the first round and the second round.

e. Difference in dropout rates of college student athletes and regular students