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Modeling and Multivariate Methods - SAS

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618 Visualizing, Optimizing, <strong>and</strong> Simulating Response Surfaces Chapter 24<br />

Noise Factors (Robust Engineering)<br />

Figure 24.72 Derivative of the Prediction Formula with Respect to Silica<br />

derivative set<br />

to maximize at<br />

zero<br />

6. Select Maximize Desirability to find the optimum values for the process factor, balancing for the noise<br />

factor.<br />

This time, we have also hit the targeted value of HARDNESS, but our value of SILICA is on its flatter region.<br />

This means variation in SILICA will not transmit as much variation to HARDNESS.

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