# Observations

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The following regression equation was computed from a sample of 20 observations:

Y'= 15 - 5X

SSE was found to be 100 and SS total 400.

a. Determine the standard error of estimate.

b. Determine the coefficient of determination.

c. Determine the coefficient of correlation. (Caution: Watch the sign!)

https://brainmass.com/statistics/correlation-and-regression-analysis/observations-15452

#### Solution Preview

a.

<br>standard error of estimate = SQRT(SS/(n-2))

<br>=SQRT(400/(20-2))= 4.714

<br>

<br>b. ...

#### Solution Summary

The following regression equation was computed from a sample of 20 observations:

Y'= 15 - 5X

SSE was found to be 100 and SS total 400.

a. Determine the standard error of estimate.

b. Determine the coefficient of determination.

c. Determine the coefficient of correlation. (Caution: Watch the sign!)

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