Question: A Prepare a normal probability plot of the effects Which

a. Prepare a normal probability plot of the effects. Which effects seem active? Fit a model using these effects.
b. Calculate the residuals for the model you fit in part (a). Construct a normal probability plot of the residuals and plot the residuals versus the fitted values. Comment on the plots.
c. If any factors are negligible, collapse the 25-1 design into a full factorial in the active factors. Comment on the resulting design and interpret the results.



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  • CreatedSeptember 19, 2015
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