Question: (a) Consider the quadratic regression model from Problem 10.12. Compute t statistics for each model parameter and comment on the conclusions that follow from these

(a) Consider the quadratic regression model from Problem 10.12. Compute t statistics for each model parameter and comment on the conclusions that follow from these quantities.

(b) Use the extra sum of squares method to evaluate the value of the quadratic terms , and x1x2 to the model.

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