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Industrial Statistics with Minitab by Xavier Tort-Martorell Llabres, Lluis Marco Almagro, Pere Grima Cintas

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27.1 Calculating the Effects and Determining the Significant Ones

Stat > DOE > Factorial > Analyze Factorial Design

nc27uf001.eps
nc27uf002.eps
This menu option only appears enabled if the worksheet contains a design of experiments matrix. Thus, either the option Create Factorial Design or Define Custom Factorial Design must have been used previously.

Stat > DOE > Factorial > Analyze Factorial Design > Graphs

nc27uf003.eps
Example 27.1:
Consider again the first example of Chapter 26 where a design of experiments is carried out to improve the quality of the welding process performed in a stainless steel component, which is used in the production of exhaust pipes. The considered factors are gas flow, intensity and chain speed.

The Minitab worksheet looks as follows:

nc27uf004.eps
If you want to reproduce this example ...

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