In a study to determine whether gender affects salary offers for graduating MBA students, 25 pairs of students were selected. Each pair consisted of a female and a male student who were matched according to their GPAs, courses taken, ages, and previous work experience. The highest salary offered (in thousands of dollars) to each graduate was recorded.

a. Is there enough evidence at the 10% significance level to infer that gender is a factor in salary offers?

b. Discuss why the experiment was organized in the way it was.

c. Is the required condition for the test in part (a) satisfied?