How different are the mean GPA's when comparing Business majors to Science majors at Penn State. Researchers obtained the GPA's for 200 Business majors and 200 Science majors at Penn State. These researchers should [523%] V because the question of interest [ii] V .This is a(n) Big] " , so a cause-and-effect conclusion [515%] V be included. If the researchers instead obtained a random sample of 200 Business majors and a random sample of 200 Science majors from Penn State, we [] " include a cause and effect conclusion. We [53%] V generalize our ndings to all Business and Science majors at Penn State