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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population

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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 48 business days, the mean closing price of a certain stock was $123.14. Assume the population standard deviation is $11.34

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