A study was conducted to assess undergraduate college students’ attitudes toward the student bookstore. Since many students attend a local junior college before transferring to the university, the classification of those responding to the study is a key demographic. Is the sample representative of the population according to the chi-square test shown in Figure 13.21, given that the student body is composed of 7% freshmen, 6% sophomores, 42% juniors, and 35% seniors?

Why or why not? If the sample is not representative, what action(s) would you suggest that the researcher take?