We extracted a 22 factorial design from their larger experim

We extracted a 2^2 factorial design from their larger experiment,which is summarized in Table 7.6.Estimate both main effects and the interaction. A chemical engineer used a replicated 2^2 factorial design to study the impact of inlet feed temperature and reflux ration on the yield of gasoline from a distillation columln. The yield was defind to be concentration of gasoline in the product stream from the top of the column. Table 7.7 summarizes the experiment results. Estimate the two main effects and the interation. Use a statistical software package to analyze these results. Estimate the two main effects and interaction. Use a statistical software package to analyze these results.

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