An estimated multiple regression model has the form ? = 8 + 3x₁- 5x₂- 4x₃. As x₁ increases by 1 unit, with x₂ and x₃ held constant, the value of y, on average, is estimated to: A) decrease by 3 unit. B) increase by 3 units. C) decrease by 6 units. D) increase by 11 units.

Question

Quizplus · Accepted Answer

According to the estimated regression model, as x₁ increases by 1 unit, with x₂ and x₃ held constant, the value of ŷ (the predicted value of y) is estimated to increase by 3 units.

An Estimated Multiple Regression Model Has the Form ? =