9.22 Translate each problem into a r×c table. In each of the following scenarios, translate the problem into one that can be analyzed using a r×c table. Give the values of r and

c, the table, and its entries.

a. A sample of undergraduate students were asked whether or not they were in favor of adding a civics requirement to the core curriculum. For the first-year students, 108 said Yes and 250 said No. For the fourth-year students, 131 said Yes and 111 said No.

b. Four website designs are being compared. Forty-eight students have agreed to be subjects for the study, and they are each randomly assigned to watch one of the designs for as long as they like. For each student, the study directors record whether or not the website is watched for more than a minute. For the first design, 10 students watched for more than a minute; for the second, 6 watched for more than a minute; for the third, 11 students watched for more than a minute; and for the fourth, 2 students watched for more than a minute.