Question: a. How would you compute appropriate cross-product terms for testing the interaction of WEIGHT and dosage level of toluene for Problem 9? b. State the

a. How would you compute appropriate cross-product terms for testing the interaction of WEIGHT and dosage level of toluene for Problem 9?
b. State the appropriate regression model.
c. State the null hypothesis (of no interaction) in terms of regression coefficients.

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a Using PPMTOLU as the reference group we define the crossproduct terms as XZ 1 WGT if PPMTOLU 1... View full answer

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