Mathematics, 24.03.2022 01:00 romyknight

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 49 business days, the mean closing price of a certain stock was $127.89. Assume the
population standard deviation is $11.55.

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