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Consider the following pairs of measurements:

a. Construct a scattergram for these data

b. Find the least squares line, and plot it on your scattergram.

c. Find s²

d. Find a 90% confidence interval for the mean value of y when x = 3. Plot the upper and lower bounds of the confidence interval on your scattergram.

e. Find a 90% prediction interval for a new value of y when x = 3. Plot the upper and lower bounds of the prediction interval on your scattergram.

f. Compare the widths of the intervals your constructed in parts d and e. Which is wider and why?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91869297

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