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Find the coefficient of determination and interpret the result.

Find the coefficient of determination and interpret the result.

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 money raised and spent (both in millions of dollars) by all congressional campaigns for 8 recent 2-year periods are shown in the table. The equation of the regression line is y = 0.958x+7.214. Find the coefficient of determination and interpret the result. Money raised, 471.5 666.3 732.7 X Money spent, y 441.1 677.4 729.8 750.1 726.6 1000.7 937.7 1165.2 Find the coefficient of determination and interpret the result. r2 = (Round to three decimal places as needed.) How can the coefficient of determination be interpreted? O A. The coefficient of determination is the fraction of the variation in money spent that can be explained by the variation in money raised. The remaining fraction of the variation is unexplained and is due to other factors or to sampling error. OB. The coefficient of determination is the fraction of the variation in money spent that is unexplained and is due to other factors or sampling error. The remaining fraction of the variation is explained by the variation in money raised. 2300 787.1 787.3 1031.5 956.5 1219.8 20 le end S 13
Transcribed Image Text:The money raised and spent (both in millions of dollars) by all congressional campaigns for 8 recent 2-year periods are shown in the table. The equation of the regression line is y = 0.958x+7.214. Find the coefficient of determination and interpret the result. Money raised, 471.5 666.3 732.7 X Money spent, y 441.1 677.4 729.8 750.1 726.6 1000.7 937.7 1165.2 Find the coefficient of determination and interpret the result. r2 = (Round to three decimal places as needed.) How can the coefficient of determination be interpreted? O A. The coefficient of determination is the fraction of the variation in money spent that can be explained by the variation in money raised. The remaining fraction of the variation is unexplained and is due to other factors or to sampling error. OB. The coefficient of determination is the fraction of the variation in money spent that is unexplained and is due to other factors or sampling error. The remaining fraction of the variation is explained by the variation in money raised. 2300 787.1 787.3 1031.5 956.5 1219.8 20 le end S 13
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