Answer
8.3% is a good interest rate offer
Work Step by Step
i) We have to find the average interest rate for someone who has a score of 680:
$\hat{y} = −0.0764(680)+61.3687$
$\hat{y} = 9.4167$
ii) 8.3% is a good interest rate offer because it is below the expected/average interest rate for someone who has a credit score of 680.
