A multiple regression model has the estimated form = 5 + 6x + 7w

As x increases by 1 unit (holding x constant), y is expected to
A) increase by 11 units.
B) decrease by 11 units.
C) increase by 7 units.
D) decrease by 7 units.

Question

A multiple regression model has the estimated form ​  = 5 + 6x + 7w
​
As x increases by 1 unit (holding x constant), y is expected to
A) increase by 11 units. 
B) decrease by 11 units. 
C) increase by 7 units. 
D) decrease by 7 units.

Quizplus · Accepted Answer

According to the model, y is expected to increase by 7 units for each unit increase in w, holding x constant. Changing x has no effect on the expected change in y. Therefore, option C is the correct answer.

A Multiple Regression Model Has the Estimated Form ​

A Multiple Regression Model Has the Estimated Form