Question: Comcast would like to develop the ability to predict the monthly cable bill for a customer. A multiple regression model was developed using a random

Comcast would like to develop the ability to predict the monthly cable bill for a customer. A multiple regression model was developed using a random sample of customers using the following independent variables: TV: the number of televisions in the household People: the number of people living in the household Years: the number of years that the household has been a Comcast customer The following figure shows the regression output from Excel.

10 ANOVA 12 Regression 13 Residual 14 Total 15 9526.63 970.33 24

a. Calculate the multiple coefficient of determination.

b. Test the significance of the overall regression model using α = 0.05.

c. Calculate the adjusted multiple coefficient of determination.

10 ANOVA 12 Regression 13 Residual 14 Total 15 9526.63 970.33 24 27 Coefficients Standard Error ntercet 39.324715.4384 18. TV 19 People 20 Years 39.3247 1.9025 7.3994 0.8577 3.2437 2.7922 1.2931

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