A large Midwestern University studied student performance in

A large Midwestern University studied student performance in a statistics course required by its mechanical engineering majors. Of interest is the time spent in extracurricular activities and whether a student earned a B or better in the course.

Extracurricular Activities

(hours per week)

Reference: Ref 23-1

Suppose we wish to test the null hypothesis that there is no association between success in the course and the time spent in extracurricular activities. Under the null hypothesis, the expected number of successful students (B or better) who engage in > 12 hours of extracurricular activities is

Solution

Prepare chi square contingency table for expected