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Easy: Determine Main Effects

After a full factorial design was executed I have the following tabulated results:

 

Force	Pressure	Hours to failure
15 N (Low)	10 Pa (Low)	2800 hours
15 N (Low)	150 Pa (High)	1300 hours
100 N (High)	10 Pa (Low)	800 hours
100 N (High)	150 Pa (High)	300 hours

 

 

How would I determine the main effects of Force and Pressure?

Data TableDOERe: Easy: Determine Main EffectsDid you only measure one Hours to failure for each combination of Force and Pressure?Re: Easy: Determine Main EffectsYep, you got it!Re: Easy: Determine Main Effects

Enter your data into a data table

Go to

     Analyze=>Fit Model

enter in the model you want to analyze

And click OK

Re: Easy: Determine Main Effects

Eric, welcome to the community.  Jim provided the steps to do exactly what you want.  I would simply add...why not also get the interaction effect while you're at it.  3 total DF's P+F+PF