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 March 4, 2021, 6:00 pm ad1c9bdddf
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 ...
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.