Question: In a multiple regression, the following sample regression equation is obtained: = 149 + 11.1x 1 + 2.3x 2 . a. Predictyifx 1 equals 20

In a multiple regression, the following sample regression equation is obtained:

= 149 + 11.1x1+ 2.3x2.

a.

Predictyifx1equals 20 andx2equals 35.(Round your answer to 1 decimal place.)

b. Interpret the slope coefficient ofx1.
Asx1increases by one unit,yis predicted to increase by 2.3 units, holdingx2constant.
Asx1increases by one unit,yis predicted to decrease by 11.1 units, holdingx2constant.
Asx1increases by one unit,yis predicted to decrease by 2.3 units, holdingx2constant.

Asx1increases by one unit,yis predicted to increase by 11.1 units, holdingx2constant.

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