2/12/2009
Chapter 4, cont’d.
·
Simultaneous Inference in SAS
o
Airfreight.sas: #4.4, #4.8
·
Regression through the Origin
o
Model
o
How does not having an intercept change what we’ve
done so far?
o
Table 4.1
o
Be careful!
·
Inverse Predictions
o
Point estimation of Xh(new)
o
Interval estimation of Xh(new)
o
When is the confidence interval appropriate?
Chapter 5: Matrix Approach to
Regression
·
Review Linear Algebra! (Sections 5.1-5.8)
·
Model
·
Estimation of betas
·
Hat matrix
·
Residuals
·
Sums of Squares
·
Inference
Please read Chapter 5 for Tuesday,
and prepare the following for a Problem Session:
4.14, 4.15, 4.19, 4.22; 5.5, 5.13, 5.24