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A confidence interval for a population mean has length 26. a. Determine the margin of error. b. If the sample mean is 60, obtain the

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A confidence interval for a population mean has length 26. a. Determine the margin of error. b. If the sample mean is 60, obtain the confidence interval. c. Construct a graph that illustrates your results. a. The margin of error is (Type an integer or a decimal. Do not round.)

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