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# minitab - X denotes an observation whose X value gives it...

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1 2 4. Descriptive Statistics: Gender Variable N N* Mean SE Mean StDev Minimum Q1 Median Q3 Gender 100 0 0.4600 0.0501 0.5009 0.0000 0.0000 0.0000 1.0000 Variable Maximum Gender 1.0000 5. Regression Analysis: Discount versus Income The regression equation is Discount = 2626 - 0.0381 Income Predictor Coef SE Coef T P Constant 2626.0 134.7 19.50 0.000 Income -0.038067 0.003627 -10.50 0.000 S = 370.567 R-Sq = 52.9% R-Sq(adj) = 52.4% Analysis of Variance Source DF SS MS F P Regression 1 15129204 15129204 110.17 0.000 Residual Error 98 13457385 137320 Total 99 28586589 Unusual Observations Obs Income Discount Fit SE Fit Residual St Resid 3 28650 2520.0 1535.4 45.0 984.6 2.68R 19 40623 131.0 1079.6 41.1 -948.6 -2.58R 38 38072 1948.0 1176.8 38.0 771.2 2.09R 41 61025 339.0 303.0 99.0 36.0 0.10 X 53 38950 336.0 1143.3 38.9 -807.3 -2.19R 66 60448 361.0 325.0 97.1 36.0 0.10 X 71 43000 189.0 989.2 45.5 -800.2 -2.18R 78 64663 419.0 164.5 111.4 254.5 0.72 X R denotes an observation with a large standardized residual.

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Unformatted text preview: X denotes an observation whose X value gives it large leverage. 1. 2. Regression Analysis: Assets versus Sales The regression equation is Assets = 1867 + 0.975 Sales Predictor Coef SE Coef T P Constant 1867.4 804.5 2.32 0.023 Sales 0.97484 0.09903 9.84 0.000 S = 6132.59 R-Sq = 55.7% R-Sq(adj) = 55.1% Analysis of Variance Source DF SS MS F P Regression 1 3644175526 3644175526 96.90 0.000 Residual Error 77 2895866658 37608658 Total 78 6540042184 Unusual Observations Obs Sales Assets Fit SE Fit Residual St Resid 16 16197 44736 17657 1376 27079 4.53R 33 28285 26432 29441 2485 -3009 -0.54 X 40 50056 52634 50664 4595 1970 0.49 X 43 17124 4178 18561 1456 -14383 -2.41R 48 3222 33406 5008 696 28398 4.66R 54 2516 21419 4320 709 17099 2.81R R denotes an observation with a large standardized residual. X denotes an observation whose X value gives it large leverage. 3. Slope of Model 4. Correlation Coefficent of Assets and Sales 5. Or Explain:...
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