The Insurance Institute for Highway Safety has listed the following ratings based on collision and comprehensive claims for 12 makes of midsize fourdoor cars from the 2005€“2007 model years. Higher numbers reflect higher claims in the collision and comprehensive categories of coverage.

a. Determine the least-squares regression line for predicting the rate of collision claims based on comprehensive claim rating.
b. Calculate and interpret the values of r and r2.
c. If a new model were to have a comprehensive claim rating of 90, what would be the predicted rating for collision claims?

Transcribed Image Text:

Collision 113 108 90 124 131 126 Com 89 91 74 92 108 108 Collision 93 105 106 Com 79 97 86 116 120 98 93