Apply principles of the multiple regression model building process.
-Which of the following statements about building multiple regression models is true?
A) Automatic model building procedures such as "best subsets" and "stepwise" always select the best multiple regression model.
B) When comparing among competing multiple regression models, it is best to use R2 rather than the adjusted R2 for comparison.
C) It is always preferable to include more rather than fewer predictor variables in a multiple regression model in order to ensure the highest possible value of R.2
D) When comparing among competing multiple regression models, the best models will have the highest values for se.
E) None of the above.

Question

Quizplus · Accepted Answer

Automatic procedures don't always select the best model, adjusted R² is better for comparison than R², more predictors can lead to overfitting, and lower standard error (se) is preferred.

Apply Principles of the Multiple Regression Model Building Process