ABSTRACT
As explained in Chapter 1, the purpose of a factorial experiment is to investigate the average contribution that each treatment factor makes to the response (called the factor main effect) as well as the nonadditive (joint) effect of the factors on the response (called the factor interactions). In this chapter, we label the response variable as y and the k factors as F1,F2,F3, . . . (except in Section 7.10 where we use A, B, C, . . . for ease of exposition), and we look at unblocked experiments.
