13.5 Suppose that you fit the model E(Y) = Bo + Box + B to 20 data points and obtained the accompanying MINITAB printout.

b. How well does the model fit the data? Explain.

c. Do the data provide sufficient evidence to indicate that the model contributes information for the pre- diction of y? Use the p-value approach.

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MINITAB output for Exercise 13.5 Regression Analysis: y versus x, x-sq The regression equation is y = 10.6 + 4.44 x 0.648 x-sq Predictor Constant x x-sq $ = 1.191 Coef SB Coef T P 10.5638 0.6951 15.20 0.000 4.4366 0.5150 8.61 0.000 -0.64754 0.07988 -8.11 0.000 R-Sq = 81.54 R-Sq (adj) = 79.3% Analysis of Variance Source DF SS MS F P Regression 2 106.072 53.036 37.37 0.000 Residual Error 17 24.128 1.419 Total 19 130.200