Answered: The following estimated regression… | bartleby

MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The following estimated regression equation is based on 30 observations.

The values of SST (Total Sum of Squares) and SSR (Regression Sum of Squares) are 1,805 and 1,755, respectively.

a. Compute \( R^2 \) (to 3 decimals).
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b. Compute \( R^2_{\text{adj}} \) (to 3 decimals).
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c. Comment on the goodness of fit.

The estimated regression equation: \( \hat{y} = 17.8 + 4x_1 - 2.4x_2 + 7.4x_3 + 2.8x_4 \)

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