Question
An air conditioning and heating repair firm conducted a study to determine if the average outside temperature, thickness of the insulation, and age of the
An air conditioning and heating repair firm conducted a study to determine if the average outside temperature, thickness of the insulation, and age of the heating equipment could be used to predict the electric bill for a home during the winter months in Houston, Texas. The resulting regression equation was:
Y = 256.89 - 1.45X1 - 11.26X2 + 6.10X3, where Y = monthly cost, X1 = average temperature, X2 = insulation thickness, and X3 = age of heating equipment
If the average temperature is 68, insulation is 1 inches, and the age of the heating equipment is 6. What is the estimated monthly electric bill?
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