Answer by Peter Flom for Reduce the model sequentially
First, it does not yield that. This method would select only mix and plasticizer.The reason for looking at interactions first is because it is almost always a good idea to include the main effects that...
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Reduce the model sequentially
I was given an ANOVA table and asked to reduce the model sequentially.Here, Mix and Plasticizer are two main effects, Run is a block factor so is a random effect.I searched the online resources say:...
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