Data Analysis Multiple Choice Questions

1. The adjusted coefficient of determination a. Is a corrolary to Evan's rule b. Is intended to show the stability of the regression analysis c. Penalizes the inclusion of useless predictors 2. The F-Test does which of the following

a. Tests a single coefficient for significance b. Tests the overall model for significance c. Tests the ANOVA table for significance d. Tests the R-square value for significance 3. Which is the general null hypothesis for the F test? a. Ho:Bk=0 b. Ha:Bn=0 c. Ho:Bi+Bk=0 d. Ho:B1=B2=...=Bk=0 4. Why is testing Ho:=0 a very common test for a predictor? a. It is a very easy test to value Beta b. It tests the significance of the predictor. If we reject the null hypothesis, then the predictor has a slope and is significant c. It tests the significance of the predictor. If we reject the null hypothesis, then the predictor has no slope and is not significant d. It tests the significance of the predictor. If fail to reject the null hypothesis, then the predictor has a slope and is significant

Ho Ho