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Suppose You Fit a Least Squares Line to 20 Data s2s ^ { 2 }

Question 87

Essay

Suppose you fit a least squares line to 20 data points and the calculated value of SSE is
0.476. a. Find s2s ^ { 2 } , the estimator of σ2\sigma ^ { 2 } .
b. What is the largest deviation you might expect between any one of the 20 points and the least squares line?

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