Fractional Factorial Designs with Blocks and Center Points

Confounding and Aliasing

This example, like all fractional factorial designs, was generated according to certain confounding rules, which are shown on the Confounding Rules tab of the Design Details window. Note that blocks are confounded with the three-factor interaction FLOW*TIME*ETCH. Therefore, you cannot estimate this interaction.

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Click the Alias Structure tab of the Design Details window to view the alias sets of the design.

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See the section "Confounding" for more information about confounding and the section "Alias Structure" for more information about aliasing.

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