An article in Process Engineering (1992, No. 71, pp. 4647)
Chapter 14, Problem 14-61(choose chapter or problem)
An article in Process Engineering (1992, No. 71, pp. 4647) presents a two-factor factorial experiment used to investigate the effect of pH and catalyst concentration on product viscosity (cSt). The data are as follows:(a) Test for main effects and interactions using 0.05. What are your conclusions? (b) Graph the interaction and discuss the information provided by this plot. (c) Analyze the residuals from this experiment.
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