I’m studying for my Statistics class and don’t understand how to answer this. Can you help me study?
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 32 business days, the mean closing price of a certain stock was $114.13 Assume the population standard deviation is $10.99
The 90% confidence interval is (nothing,nothing).
(Round to two decimal places as needed.)
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