Be Sure to Check the Residuals When Analyzing the Outcome of your Designed Experiments

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Be Sure to Check the Residuals When Analyzing the Outcome of your Designed Experiments

Continuing his series of tips for people implementing Continuous Process Improvement, our tutor Albert Plant writes: There is a natural tendency for experimenters to hurry to look at the effects graphs, ANOVA’s and other analysis, when they have completed their hard work runni...

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Consider Carefully Whether You Need to Block when Designing Experiments

I think that some experimenters believe that you should always be a case for using blocks when designing experiments. This is not so. There will be circumstances when it will be necessary to consider using blocks, but blocking doesn’t come cheaply. For example, four blocks ...

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