A multiple regression model has the form Y = 7 + 2X1 + 9X2 As X1 increases by 1 unit holding X2 constant), Y is expected to
A) increase by 9 units
B) decrease by 9 units
C) increase by 2 units
D) decrease by 2 units

Question

Quizplus · Accepted Answer

As X1 increases by 1 unit holding X2 constant, Y is expected to increase by 2 units based on the coefficient for X1 in the regression model. The coefficient for X2 is unrelated to the change in Y when only X1 changes.

A Multiple Regression Model Has the Form Y = 7