Student center survey For their class project, a group of Statistics students decide to survey the student body to assess opinions about the proposed new student center. Their sample of 200 contained...

Student center survey For their class project, a group of Statistics students decide to survey the student body to assess opinions about the proposed new student center.

Their sample of 200 contained 50 first-year students, 50 sophomores, 50 juniors, and 50 seniors.

a) Do you think the group was using an SRS? Why?

 b) What sampling design do you think they used?