A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n = 15 college students. The SAT scores have a mean of M = 580 with SS = 22,400, and the GPAs have a mean of 3.10 with SS = 1.26, and SP = 84.Find the regression equation for predicting GPA from SAT scores.What percentage of the variance in GPAs is accounted for by the regression equation? (Compute the correlation r, then find r^2.)Does the regression equation account for a significant portion of the variance in GPA? Use α = .05 to evaluate the F-ratio. 8. A professor obtains SAT scores and freshman grade point averages (GPAS) for aof n= 15 college students. The SAT scores have a mean of M = 580 with SS =22,400, and the GPAS have a mean of 3.10 with SS = 1.26, and SP = 84.a. Find the regression equation for predicting GPA from SAT scores.b. What percentage of the variance in GPAS is accounted for by the regressionequation? (Compute the correlation, r, then find r2.)c. Does the regression equation account for a significant portion of the variance inGPA? Use a = .05 to evaluate the F-ratio.

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Answered: mean of M = 580 with SS = 22,400, and…

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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A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n = 15 college students. The SAT scores have a mean of M = 580 with SS = 22,400, and the GPAs have a mean of 3.10 with SS = 1.26, and SP = 84.

Find the regression equation for predicting GPA from SAT scores.
What percentage of the variance in GPAs is accounted for by the regression equation? (Compute the correlation r, then find r^2.)
Does the regression equation account for a significant portion of the variance in GPA? Use α = .05 to evaluate the F-ratio.