A faculty group wants to determine whether job rating (x) is a useful linear pre

Question

A faculty group wants to determine whether job rating (x) is a useful linear predictor of raise (y). Consequently, the group considered the straight-line regression model E(y)=0+1x. Using the method of least squares, the faculty group obtained the following prediction equation.

Interpret the estimated slope of the line.

ModifyingAbove y with caret y=14,0002,000x

Chose an answer below:

A. For a $1 increase in an administrator's raise, we estimate the administrator's rating to decrease 2,000 points.

B. For an administrator with a rating of 1.0, we estimate his/her raise to be $2,000.

C. For a 1-point increase in an administrator's rating, we estimate the administrator's raise to increase $2,000.

D. For a 1-point increase in an administrator's rating, we estimate the administrator's raise to decrease $2,000.

Explanation / Answer

option D is correct

D. For a 1-point increase in an administrator's rating, we estimate the administrator's raise to decrease $2,000.

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