Cellulon A Manufacturer Of Home Insulation Wants To Develop Guidelines For Builders And Consumers On How The Thickness 1 (45.83 KiB) Viewed 91 times
Cellulon A Manufacturer Of Home Insulation Wants To Develop Guidelines For Builders And Consumers On How The Thickness 2 (40.45 KiB) Viewed 91 times
Cellulon, a manufacturer of home insulation wants to develop guidelines for builders and consumers on how the thickness of the insulation in the attic of a home and the outdoor temperature affect natural gas consumption. In the laboratory, it varied the insulation thickness and temperature. A few of the findings are. Monthly Natural Gas Consumption (cubic feet), Thickness of Insulation (inches), X1 6.0 12 Outdoor Temperature (F). X2 45.0 40 49 30.3 23.2 28.7 On the basis of the sample results, the regression equation is: Ý = 114.25 -2.06x1 - 1.56X2 a. How much natural gas can homeowners expect to use per month if they install 5 inches of insulation and the outdoor temperature is 45 degrees F? (Round your answer to 2 decimal places.) Natural gas cubic foet
b. What effect would installing 7 inches of insulation instead of 5 have on the monthly natural gas consumption (assuming the outdoor temperature remains at 45 degrees F)? (Round your answers to 2 decimal places.) rubicle of the natural gas consumidon down to dubice c. Why are the regression coefficients by and by negative? Is this logical? the consumption of natural gas deco and outdoor temperatur logically as the amount of Insulation
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