Apply Principles of the Multiple Regression Model Building Process

question 10

Multiple Choice

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.

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