Title: How to Analyze a Split-Plot Experiment
Authors: Scott M. Kowalski, Kevin Potcner
Publication Source: Quality Progress, Vol. 37, No. 12, December 2004, pp. 67-74


Quality improvement projects frequently require experimentation on a process. In many real experimental situations, a restriction is placed on the randomization of runs that affects the statistical analysis. A split-plot experimental method involving two error variances is a solution. The proper analysis of this type of design structure is discussed.

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