The following estimated regression equation relating sales to inventory investment and advertising expenditures was given. ý = 28 + 15x, + 7x2 The data used to develop the model came from a survey of 10 stores; for those data, yy (Total Sum of Squares) = 19,000 and SSR (Regression Sum of Squares) = 14,440. (a) For the estimated regression equation given, compute R2.(Round your answer to two decimal places.) R2 = (b) Compute the adjusted r-square, R,2. (Round your answer to two decimal places.) R = (c) Does the model appear to explain a large amount of variability in the data? Explain. (For purposes of this exercise, consider an amount large if it is at least 55%. Round your answer to the nearest integer.) The adjusted coefficient of determination shows that % of the variability has been explained by the two independent variables; thus, we conclude that the mode v ---Select--- explain a large amount of variability. does does not

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The following estimated regression equation relating sales to inventory investment and advertising expenditures was given.
ŷ = 28 + 15x1 + 7×2
The data used to develop the model came from a survey of 10 stores; for those data, SSyy (Total Sum of Squares) = 19,000 and SSR (Regression Sum of Squares) = 14,440.
(a) For the estimated regression equation given, compute R2.(Round your answer to two decimal places.)
R2 =
2
(b) Compute the adjusted r-square, R,. (Round your answer to two decimal places.)
2
Ra
(c) Does the model appear to explain a large amount of variability in the data? Explain. (For purposes of this exercise, consider an amount large if it is at least 55%. Round your answer to the
nearest integer.)
The adjusted coefficient of determination shows that
% of the variability has been explained by the two independent variables; thus, we conclude that the mode v ---Select---
explain a large amount of variability.
does
does not
Transcribed Image Text:The following estimated regression equation relating sales to inventory investment and advertising expenditures was given. ŷ = 28 + 15x1 + 7×2 The data used to develop the model came from a survey of 10 stores; for those data, SSyy (Total Sum of Squares) = 19,000 and SSR (Regression Sum of Squares) = 14,440. (a) For the estimated regression equation given, compute R2.(Round your answer to two decimal places.) R2 = 2 (b) Compute the adjusted r-square, R,. (Round your answer to two decimal places.) 2 Ra (c) Does the model appear to explain a large amount of variability in the data? Explain. (For purposes of this exercise, consider an amount large if it is at least 55%. Round your answer to the nearest integer.) The adjusted coefficient of determination shows that % of the variability has been explained by the two independent variables; thus, we conclude that the mode v ---Select--- explain a large amount of variability. does does not
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