For the estimated multiple regression model ŷ = 30 - 4x1 + 5x2 +3 x3, a one unit increase in x3, holding x1 and x2 constant, will result in which of the following changes in y?
A)y will increase by 3 units.
B)y will increase by 2 units, estimated, on average.
C)y will increase by 33 units
D)y will increase by 3 units, estimated, on average.

Question

Quizplus · Accepted Answer

According to the estimated regression model, a one unit increase in x3 will result in a 3 unit increase in y, holding x1 and x2 constant. Therefore, the answer is D, as it states that y will increase by 3 units, estimated, on average.

For the Estimated Multiple Regression Model ŷ = 30 -