Solved: A least-squares line is fit to a set of points. If the total sum of squares is
Chapter 7, Problem 4(choose chapter or problem)
A least-squares line is fit to a set of points. If the total sum of squares is \(\sum\left(y_{i}-\bar{y}\right)^{2}=181.2\), and the error sum of squares is \(\sum\left(y_{i}-\widehat{y}_{i}\right)^{2}=33.9\), compute the coefficient of determination \(r^2\).
Equation Transcription:
Text Transcription:
Sigma(y_{i}-bar{y})2=181.2
Sigma(y_{i}-hat{y}_{i})2=33.9
r^2
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