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Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 9-74.272 +98.53 and r=-0.13. What proportion of the variation in y can be explained by the linear regression equation found above? Report answer as a percentage accurate to one decimal place.

Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 9-74.272 +98.53 and r=-0.13. What proportion of the variation in y can be explained by the linear regression equation found above? Report answer as a percentage accurate to one decimal place.

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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Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 9-74.272 +98.53 and r=-0.13. What proportion of the variation in y can be explained by the linear regression equation found above? Report answer as a percentage accurate to one decimal place.
Transcribed Image Text:Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported as 9-74.272 +98.53 and r=-0.13. What proportion of the variation in y can be explained by the linear regression equation found above? Report answer as a percentage accurate to one decimal place.
A sample of voters were polled to determine the likelyhood of measure 324 passing. The poll determined that 69 % of voters were in favor of the measure with a margin of error of 3.4 %. Find the confidence interval. Use () in your notation.
Transcribed Image Text:A sample of voters were polled to determine the likelyhood of measure 324 passing. The poll determined that 69 % of voters were in favor of the measure with a margin of error of 3.4 %. Find the confidence interval. Use () in your notation.
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