Exam 14: Multiple Regression Analysis

If the hypothesis H₀: β₁ = 0 is rejected,then the sample regression coefficient b₁ indicates the change in the predicted value for a unit change in X₁ when all other X_i variables are held constant.

In multiple regression analysis,residuals (Y − )are used to ________.

In multiple regression analysis,an F-statistic is used to test the global hypothesis,H₀: All β_i = 0

In multiple regression,a dummy variable is significantly related to the dependent variable when ________.

The following correlations were computed as part of a multiple regression analysis that used education,job,and age to predict income. Which is the dependent variable?

To evaluate the assumption of linearity,a multiple regression analysis should include ________.

The following correlations were computed as part of a multiple regression analysis that used education,job,and age to predict income. Which independent variable has the weakest association with the dependent variable?

If a data set of 10 observations is used in a multiple regression analysis with 10 independent variables,then ________.

In an ANOVA table for a multiple regression analysis,the global test of significance is based on the ________.

When expressed as a percentage,what is the range of values for multiple R²?

A variable that can assume only one of two possible outcomes that take on the values of either 0 or 1,and is used to incorporate the effect of qualitative variables in a regression model,is referred to as ________.

Which statistic is used to test a global hypothesis about a multiple regression equation?

If the coefficient of multiple determination is 0.81,what percent of variation is not explained?

What happens as the scatter of data values about the regression plane increases?

In an ANOVA table,for a multiple regression analysis,the variation of the dependent variable explained by the variation of the independent variables is represented by ________.

A manager at a local bank analyzed the relationship between monthly salary and three independent variables: length of service (measured in months),gender (0 = female,1 = male),and job type (0 = clerical,1 = technical). The following ANOVA summarizes the regression results: Based on the ANOVA,the coefficient of multiple determination is ________.

The variance inflation factor (VIF)is used to select or remove independent variables to reduce the effects of multicollinearity in a multiple regression equation.

In a regression analysis,three independent variables are used in the equation based on a sample of 40 observations. In the ANOVA table for a multiple regression analysis,what are the degrees of freedom associated with the F-statistic?

Which of the following statements about stepwise regression is true?

In an ANOVA table for a multiple regression analysis,the regression mean square is ________.