7. In SAS ADX create a new split-plot design dening four whole-plot factors A, B, C, and D, and four sub-plot factors P, Q, R, and S as shown in Figure 8.7.

(a) Click on the Select Design button to see the four alternate designs shown in Figure 8.10.

(b) What are the generators shown on the Design Properties tab for the third design (24????1  24????2) shown in Figure 8.8?

(c) From the generators nd the complete dening relation including all generalized interactions, and compare this to the dening relation for the 24????1  24????2 design created by proc factex in Section 8.5.1.

(d) List the seven eects and all their aliases that would be tested with the whole-plot error.

(e) List the remaining 24 eects that would be tested with the sub-plot error.