Suppose the true relationship between E(y) and the quantitative independent variables x 1 and x 2 is

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Suppose the true relationship between E(y) and the quantitative independent variables x1 and x2 is 

E(y) = 4 - x1 + 2x2  + x1x2 

Answer the questions posed in Exercise 12.16. Explain the effect of the interaction term on the mean response E(y).

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Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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