13. Find the optimal moist cake for the data in Table 10.9.

(a) Do the canonical analysis and make a contour plot of the moisture read-

ing, y, using the least squares coecients shown on the left side of Table 10.10.

(b) Do the canonical analysis and make a contour plot of the moisture read-

ing, y, using the REML estimates of the coecients shown on the right side of Table 10.10.