Question 1
In a multiple regression model, what does a high Variance Inflation Factor (VIF) indicate?
Question 2
When interpreting the coefficients in a multiple regression model, what does a coefficient of $0$ imply?
Question 3
If a multiple regression model has an R-squared value of $0.85$, what does this imply?
Question 4
What is the primary purpose of including interaction terms in a multiple regression model?
Question 5
In a regression model, if the coefficient for an interaction term is significant, what does this imply about the main effects?
