Please explain why the following are true/false:

1. The value of R-squared represents the unexplained variation for a regression equation. True or False.

2. In regression, a two-tailed p-value test is used to determine if the coefficient of each independent variable is significant. True or False

3. In a multiple regression model, a test of significance for the regression equation is not necessary if all the independent variables prove significant. True or false

4. In multiple regression, the intercept must be tested to determine if it's significant. True or false

Answer rating: 100% (QA)

1 False Rsqared represents the explained variation 2 False ... View the full answer