If the experiment in Exercise 9.1 is to be redesigned in such a way that a different factorial effect is to be confounded with blocks in each replicate, write down the design so that AB is confounded with blocks in replicate I, AC in replicate II, BC in replicate III, and ABC in replicate IV. Carry out the analysis of the redesigned experiment with responses in Exercise 9.1, as if they were obtained under this new design, and comment on the information recovered for the effects that were partially confounded with blocks.