How do some of the proofs offered by Prof. Webb relate into each other mathematically?
Let me start out by saying you are NOT expected to understand more about these proofs than what is already covered in class and/or the handouts. But if you want to delve deeper for your own learning and/or comfort. The following text is a great resource: Neter, J., Kutner, M. H., Nachtsheim, C. J., & Wasserman, W. (1996). Applied Linear Statistical Models. Chicago: Irwin.