Question: 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

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?

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