In each of Exercises, explain the effect on the margin of error and hence the effect on the accuracy of estimating a population mean by a sample mean. 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 that illustrates your results.

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In each of Exercises, explain the effect on the margin of error and hence the effect on the accuracy of estimating a population mean by a sample mean.

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 that illustrates your results.

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