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For n 6 data points the following quantities have

For n = 6 data points, the following quantities have been calculated:

a. Determine the least-squares regression line.

b. Determine the standard error of estimate.

c. Construct the 95% confidence interval for the mean of y when x = 7.0.

d. Construct the 95% confidence interval for the mean of y when x = 9.0.

e. Compare the width of the confidence interval obtained in part (c) with that obtained in part (d). Which is wider and why?

a. Determine the least-squares regression line.

b. Determine the standard error of estimate.

c. Construct the 95% confidence interval for the mean of y when x = 7.0.

d. Construct the 95% confidence interval for the mean of y when x = 9.0.

e. Compare the width of the confidence interval obtained in part (c) with that obtained in part (d). Which is wider and why?

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