Please help with this problem and show work! It is a review In a multiple regres

Question

Please help with this problem and show work! It is a review

In a multiple regression, the following sample regression equation is obtained: y = 152 + 12.9x_1 + 2.7x_2. a. Predict y if x_1 equals 20 and x_2 equals 35. (Round your answer to 1 decimal place.) b. Interpret the slope coefficient of x_1. As x_1 increases by one unit, y is predicted to increase by 12.9 units, holding x_2 constant. As x_1 increases by one unit, y is predicted to increase by 2.7 units, holding x_2 constant. As x_1 increases by one unit, y is predicted to decrease by 2.7 units, holding x_2 constant. As x_1 increases by one unit, y is predicted to decrease by 12.9 units, holding x_2 constant

Explanation / Answer

Solution:

In a multiple regression equation is
= 152 + 12.9 x1 + 2.7 x2

a) Compute the predicted value of y when x1 = 20 and x2 = 35

= 152 + 12.9 x1 + 2.7 x2
= 152 + 12.9(20) + 2.7(35)
= 152 + 258 + 94.5
= 504.5
b) As x1 increases by one unit, y is predicted to increase by 12.9 units, holding x2 constant.

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