D SUMMARY OUTPUT Regression Statistics Multiple R R-Square Adjusted R-Square Standard Error 4 0.76 0.57 0.49 47.13 Observations 25 10 Analysis of Variance Degrees of Freedom Sum of Squares Mean Square 15234.14 11 Significance F 12 Regression Residual 60936.56 6.86 .03 13 20 44431.27 2221.56 14 Total 24 105367.84 15 t-Statistic Upper 95% 223.32 16 Coefficients Standard Error P-Value Lower 95% 17 50.60 Intercept Price of Residential Heating Fuel 136.96 43.46 3.15 0.01 18 -91.69 29.09 -3.15 0.01 -149.49 -33.89 19 Price of Natural Gas 43.88 9.17 4.79 0.00 25.66 62.10 20 Price of Electricity -11.92 8.35 -1.43 0.17 -28.51 4.67 21 Income -0.050 0.3500 -0.14 0.90 -0.75 0.65
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