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1. Using
the sheet created in section (Create
a 2 Level Factor/Screening Design), click SigmaXL > Design of
Experiments > Analyze 2 Level Factorial/Screening Design.
2. We will
use the default analyze settings (all terms in the model) to start.
Click OK. The resulting Analysis report is shown:
3.
The model looks very good with an R-Square value of 99.9%! The
standard deviation (experimental error) is only 1.03 inches.
Clearly ‘Pull Back Angle’ is the most important predictor (X
factor), but all the main effects and two way interaction are
significant.
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