Statistics Homework Solutions 203

Statistics Homework Solutions 203 - 126.34 0.000 Residual...

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SUPPLEMENTARY EXERCISES FOR CHAPTER 8 203 Source DF SS MS F P Regression 1 118.21 118.21 0.78041 0.38866 Residual Error 18 2726.5 151.47 Total 19 2844.8 Quadratic Model Predictor Coef StDev T P Constant 12.683 3.9388 3.2199 0.005 Hardwood 10.067 1.1028 9.1287 0.000 Hardwood 2 0 56928 0.063974 8 8986 0.000 S = 5.3242 R-sq = 83.1% R-sq(adj) = 81.1% Analysis of Variance Source DF SS MS F P Regression 2 2362.9 1181.4 41.678 0.000 Residual Error 17 481.90 28.347 Total 19 2844.8 Cubic Model Predictor Coef StDev T P Constant 27.937 2.9175 9.5755 0.000 Hardwood 0.48749 1.453 0.3355 0.742 Hardwood 2 0.85104 0.20165 4.2204 0.001 Hardwood 3 0 057254 0.0080239 7 1354 0.000 S = 2.6836 R-sq = 95.9% R-sq(adj) = 95.2% Analysis of Variance Source DF SS MS F P Regression 3 2729.5 909.84
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Unformatted text preview: 126.34 0.000 Residual Error 16 115.23 7.2018 Total 19 2844.8 Quartic Model Predictor Coef StDev T P Constant 30.368 4.6469 6.5351 0.000 Hardwood 1 7962 3.6697 48946 0.632 Hardwood 2 1.4211 0.8632 1.6463 0.120 Hardwood 3 10878 0.076229 1 4271 0.174 Hardwood 4 0.0015256 0.0022438 0.67989 0.507 S = 2.7299 R-sq = 96.1% R-sq(adj) = 95.0% Analysis of Variance Source DF SS MS F P Regression 4 2733 683.24 91.683 0.00 Residual Error 15 111.78 7.4522 Total 19 2844.8 The values of SSE and their degrees of freedom for models of degrees 1, 2, 3, and 4 are:...
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