In a Multiple Regression Model, If the Residuals Have a Constant

question 113

Multiple Choice

In a multiple regression model, if the residuals have a constant variance, which of the following should be evident?

• A) The residual mean should be close to zero and the residual standard deviation should be close to 1.0.
• B) The plot of residuals against each independent variable should show that the spread in the residuals is about the same at all levels of the independent variables.
• C) The residuals should have a variance equal to zero for all levels of the independent variable.
• D) All of these.
• E) None of these.