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

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

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

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

(g) Construct a 95% CI on Use this CI to test for significance.

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

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Predictor Coef SE Coef T P Constant 6.188 2.704 2.29 0.027 xl 9.6864 0.4989 ? ? x2 -0.3796 0.2339 ? ? x3 2.9447 0.2354 ? ? S ?R Sq ? R-Sq (adj) = 90.2% Analysis of Variance Source DF SS MS F P Regression 3 363.01 121.00 ? ? Residual Error 44 36.62 ? Total 47 399.63