10/27/2011
Chapter 7 Multiple Regression II
- Type I Sums of Squares - see Bodyfat.R
- Type II Sums of Squares
- Using extra sums of squares to test hypotheses for betas
- Full versus reduced model approach
- Coefficients of partial determination
- Standardized multiple regression model - see Dwaine-Studios.R
- Multicollinearity
Chapter 8 Polynomial Regression Models
- To avoid problems with multicollinearity, center the predictor variables - see Powercell.R
We will have a problem session and continue with Chapter 8 on Tuesday.