The file UP‐FBE contains satisfaction ratings, age, GPA, origin, and gender of 100 students at the business department in a university in Hungary. The overall satisfaction of the students is calculated as the sum of teaching quality, offered scholarships, affordable tuition fee, affordable housing, careers service, and graduate employment, so the minimum overall satisfaction level is 6 and the maximum is 42. You want to examine the relationship between students’ overall satisfaction with their GPA.

a. Construct a scatter plot.

b. Assuming a linear relationship, use the least-squares method to compute the regression coefficients b0 and b1.

c. Interpret the meaning of the Y intercept, b0, and the slope, b1, in this problem.

d. Predict the mean overall satisfaction of the students with a GPA of 4.0.