Question: Consider the X-ray inspection data in Exercise 12-11. Use rads as the response. Build regression models for the data using the following techniques: (a) All

Consider the X-ray inspection data in Exercise 12-11.

Use rads as the response. Build regression models for the data using the following techniques:

(a) All possible regressions.

(b) Stepwise regression.

(c) Forward selection.

(d) Backward elimination.

(e) Comment on the models obtained. Which model would you prefer? Why?

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