Refer to Exercise 17.14.

a. Predict with 95% confidence the MBA program GPA of a BEng whose undergraduate GPA was 9.0, whose GMAT score as 700, and who has had 10 years of work experience.

b. Repeat part (a) for a BA student.

In exercise 17.14

The MBA program at a large university is facing a pleasant problem—too many applicants. The current admissions policy requires students to have completed at least 3 years of work experience and an undergraduate degree with a B average or better. Until 3 years ago, the school admitted any applicant who met these requirements. However, because the program recently converted from a 2-year program (four semesters) to a 1-year program (three semesters), the number of applicants has increased substantially. The dean, who teaches statistics courses, wants to raise the admissions standards by developing a method that more accurately predicts how well an applicant will perform in the MBA program. She believes that the primary determinants of success are the following:

Undergraduate grade point average (GPA)

Graduate Management Admissions Test (GMAT) score

Number of years of work experience

She randomly sampled students who completed the MBA and recorded their MBA program GPA, as well as the three variables listed here.