Question

T/F

based on the regression equation x=12.5+0.8y where x= maximum miles people can run in a year, and y=their body weight.
This implies that Joseph, who weight 180lbs will be able to run 8 miles more than John who weight 170 lbs.

Answer 1

x1 (Joseph) = 12.5 + .8 y1

x2 (John) = 12.5 + .8 y2

x1 - x2 = .8 (y1 - y2) subtracting equations

x1 - x2 = .8 (180 - 170) = 8

True