Explore BrainMass

Explore BrainMass

    Calculating correlation coefficient and r-square

    Not what you're looking for? Search our solutions OR ask your own Custom question.

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

    The estimated regression equation for these data is

    y-hat = -137.63 + .1489x

    What percentage of the total sum of squares can be accounted for by the estimated regression equation? Comment on the goodness of fit. What is the sample correlation coefficient?

    © BrainMass Inc. brainmass.com December 24, 2021, 5:01 pm ad1c9bdddf


    Solution Preview

    I have attached two files for the solution to this question. One is a Word document with details of the solution. The other is an Excel sheet showing formulas and calculation details for finding the ...

    Solution Summary

    This solution shows how to find correlation coefficient and r-square (the coefficient of determination) from raw data. We are given the data set that was used find to a simple linear regression model. From that data we find the correlation coefficient and r-square.