Explore BrainMass

Explore BrainMass

    Regression Equation: Average SAT Scores & GPAs

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Suppose that you are interested in determining the relation between the students average SAT scores [x] and their freshman GPA [y]. You collect the results for 50 students. Your hypothesis is that the SAT scores explain some of the variation in GPA's of the students. After collecting your data, you obtain the following statistics:

    The sum of y = 125.07
    The sum of x = 24,448

    The sum of y^2 = 457.86
    The sum of x^2 = 22,559,284
    The sum of xy = 84,683.7

    [N = 50].

    What is the regression equation - show work. What is the meaning of the coefficient of x? f.
    What is the coefficient of determination from these sample statistics? What does this coefficient indicate?

    © BrainMass Inc. brainmass.com June 4, 2020, 1:14 am ad1c9bdddf
    https://brainmass.com/statistics/regression-analysis/regression-equation-average-sat-scores-gpas-388166

    Solution Summary

    The solution determines the regression equation student's average SAT scores and GPAs.

    $2.19

    ADVERTISEMENT