Determine the line of regression and use it to find the best predicted new mileage rating of a four-wheel-drive vehicle given
that the old rating is 19 mi/gal.
Old
16
27
17
33
28
24
18
22
20
29
21
New
15
24
29
25
22
16
20
18
26
19
4.
ŷ = 0.808 +0.863x ; 17.2 mi/gal
ŷ = 0.863+0.808x ; 16.2 mi/gal
;
y = 0.808+0.863A ; 18.1 mi/gal
Ø = 0.863+0.808x ; 22.4 mi/gal