Question: You have fit a linear regression model to a sample of 20 observations. The total sum of squares is 100 and the regression sum of

You have fit a linear regression model to a sample of 20 observations. The total sum of squares is 100 and the regression sum of squares is 80 . The estimate of the error variance is

a. 1.5

b. 1.2

c. 2.0

d. 1.88

e. None of the above.

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