Consider the apple slice browning experiment shown in Section 7.9.

(a) If the apple slicer made eight slices of each apple instead of six, nd a partially confounded 4 × 3 factorial in three blocks of eight (instead of 4 blocks of 6) by modifying the code that used the optBlock function in that example.

(b) Analyze the data from the experiment shown in the text and verify the results shown.

(c) Check the equal variance and normality assumptions. Is a transformation warranted? If so, what transformation would you use and does it change the conclusions?