The following regression equation was computed from a sample of 20 observations: $$ \hat{y}=15-5 x $$ SSE was found to be 100 and SS total was 400 . a. Determine the standard error of estimate. b. Determine the coefficient of determination. c. Determine the correlation coefficient. (Caution: Watch the sign!)
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The standard error of estimate (SEE) is calculated using the formula: \[ SEE = \sqrt{\frac{SSE}{n - 2}} \] where \( SSE \) is the sum of squared errors, and \( n \) is the number of observations. Given: - \( SSE = 100 \) - \( n = 20 \) Substitute these values Show more…
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