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Figure 5.13 Contours of E(y) for x2 = -1,0,1 (complete second-order model)

Figure 5.13 Contours of E(y) for x2 = -1,0,1 (complete second-order model)

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Figure 5.14 SAS output for complete
second-order model of quality

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Figure 5.15 Graph of second-order
least squares model for Example 5.3

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Section 5.6
Coding
Quantitative
Independent
Variables
(Optional)

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Figure 5.16 MINITAB printout for
the quadratic model, Example 5.4

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Figure 5.17 MINITAB descriptive
statistics for temperature, x

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Figure 5.18 MINITAB printout for the
quadratic model with coded temperature

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