A plot of the residuals versus an independent X shows evidence of a curvilinear effect.Which of the following statements is a possible solution?
A)Transform the Y variable.
B)Use the Durbin-Watson statistic to determine if there is autocorrelation.
C)Add a curvilinear independent variable to the multiple regression model.
D)Check for autocorrelation among the residuals.

Question

Quizplus · Accepted Answer

Adding a curvilinear independent variable to the multiple regression model can account for the observed curvilinear effect and improve the model's fit. Transforming the Y variable may not address the curvilinear effect observed in the residuals vs X plot. Using the Durbin-Watson statistic is not directly relevant to addressing the curvilinear effect. Checking for autocorrelation among the residuals is also not directly relevant to addressing the curvilinear effect.

A Plot of the Residuals Versus an Independent X Shows