The accompanying table shows a portion of the grades that 32 students obtained on the midterm and the final examinations in a course in statistics. The entire data set, labeled Test_Scores, can be found on the text website.

MidtermFinal

78.........86

97.........94

...........

47.........91

a. Determine the sample regression equation that enables us to predict a student’s final examination grade in this course on the basis of his/her midterm grade.

b. Predict the final examination grade of a student who received an 80 on the midterm examination.