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Regression Statistics Multiple R 0.5270 R Square 0.2778 Adjusted R Square 0.1928 Standard Error 40.9107 Observations 20 ANOVA df MS F 55 Significance...

Reject H0 and conclude that the amount of insulation has a linear effect on heating costs.

Regression StatisticsMultiple R0.5270R Square0.2778Adjusted R Square0.1928Standard Error40.9107Observations20ANOVAdfMSF55Significance FRegression210943.01905471.50953.26910.0629Residual1728452.60271673.6825Total1939395.6218CoefficientsStandard Errort StatP-valueLower 95%%Upper 95%Intercept448.292590.78534.93790.0001256.7522639.8328Temperature-2.76211.2371-2.23270.0393-5.3721-0.1520Insulation-15.940810.0638-1.58400.1316-37,17365,2919
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