Question: Consider Example 12.4. Figure 12.1 on page 459 displays a SAS printout of an analysis of the model containing variables x1, x2, and x3. Focus

Consider Example 12.4. Figure 12.1 on page 459 displays a SAS printout of an analysis of the model containing variables x1, x2, and x3. Focus on the confidence interval of the mean response μY at the

(x1, x2, x3) locations representing the 13 data points.

Consider an item in the printout indicated by C.V.

This is the coefficient of variation, which is defined by.

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