Question: A confidence interval for a population mean has a margin of error of 3.4. a. Determine the length of the confidence interval. b. If the

A confidence interval for a population mean has a margin of error of 3.4.
a. Determine the length of the confidence interval.
b. If the sample mean is 52.8, obtain the confidence interval.
c. Construct a graph similar to Fig. 8.6 on page 320.

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