Answer
The least-squares regression line obtained in part (b) is not recommended. The test performed in part (f) could not confirm a linear relation between calories and sugar content.
The mean sugar content, $y ̅$, is a good estimate for the sugar content.
Work Step by Step
$y ̅=\frac{10+18+14+20+0+28+2+20+2+10+12+22+24+24}{14}=14.71$
