STAT 200 Final Exam (FALL 2016) STAT 200 Final Exam 2016 | Page 11

x 80 50 60 100 70 85 40 65 75 90
y 72 75 65 90 60 85 50 60 75 95

(a) Find an equation of the least squares regression line. Show all work.
(b) Based on the equation from part (a), what is the predicted final exam score if the average
quiz score is 82? Show all work and justify your answer.