Suppose you fit a least squares line to 26 data points and

Chapter 11, Problem 29E

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QUESTION:

Problem 29E

Suppose you fit a least squares line to 26 data points and the calculated value of SSE is 8.34.

a. Find s2, the estimator of s2 (the variance of the random error term e).

b. What is the largest deviation that you might expect between any one of the 26 points and the least squares line?

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QUESTION:

Problem 29E

Suppose you fit a least squares line to 26 data points and the calculated value of SSE is 8.34.

a. Find s2, the estimator of s2 (the variance of the random error term e).

b. What is the largest deviation that you might expect between any one of the 26 points and the least squares line?

ANSWER:

Step 1 of 2

The given information is as follows:

The number of data points, n = 26

The value of SSE is 8.34

a)  We ?nd the value of  is,

     The formulae for  is given by,

     

     Therefore, the value of  is 0.348

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