Question: Refer to Exercise 13 34 As happens in many studies not

Refer to Exercise 13.34. As happens in many studies, not all the data are correctly collected. The researcher decides that errors are present in the information collected at several of the homes. After eliminating the questionable data values, the data appropriate for modeling are given here.
a. Fit a cubic model y = β0 + β1x + β2x2 + β3x3 + ɛ to the reduced data set.
b. Compare the fit of the model in Exercise 13.35 to the fit of the model in part (a).
In exercise

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