Summary of Fit
The Summary of Fit table contains summary
statistics including Root MSE and R-Square.
The Root MSE value is 0.6998 and is the square root of the
mean square error given in the Analysis of Variance table.
Root MSE is an estimate of in the preceding regression model.
The R-Square value is 0.2046, which means that 20% of the
variation in GPA scores is explained by the fitted model.
The Summary of Fit table also contains
an adjusted R-square value, Adj R-Sq.
Because Adj R-Sq is adjusted for the number of
parameters in the model, it is more comparable over models
involving different numbers of parameters than R-Square.
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