It is important to study the effect of concentration of the reactant and the feed rate on the viscosity of the product from a chemical process. Let the reactant concentration be factor A at levels 15% and 25%. Let the feed rate be factor B with the levels being 20 lb/hr and 30 lb/hr. The experiment, involves 2 experimental runs at each of the four combinations (L = low and H = high). The viscosity readings are as follows.(a) Assuming a model containing two main effects and an interaction, calculate the three effects. Do you have any interpretation at this point?(b) Do an analysis of variance and test for interaction. Give conclusions.(c) Test for main effects and give final conclusions regarding the importance of all theseeffects.

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н 132 149 152 137 в 145 154 150 L 147 н