Use the following partially complete Minitab output to answer the following questions.

(a) Find all of the missing values.

(b) Find the estimate of

(c) Test for significance of regression. Use 0.05.

(d) Test for significance of and using a t-test with Comment on the two results.

(e) Construct a 95% CI on Use this CI to test for significance of

(f) Construct a 95% CI on Use this CI to test for significance of

(g) Comment on results found in parts (c)–(f). Is this regression model appropriate? What is your recommended next step in the analysis?

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Predictor Coef SE Coef SE Coef T P Constant 3.318 1.007 3.29 0.003 x1 0.7417 0.5768 ? ? x2 9.1142 0.6571 ? ? S ? R-Sq ? R-Sq (adj) = 87.6% Analysis of Variance Source Regression DF SS MS F P 2 133.366 66.683 ? ? ? Residual Error Total ? 17.332 27 150.698