"ou 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 47 business days, the mean closing price of a certain stock was $116.08. Assume the population standard deviation is $10.66. The 90% confidence interval is (). (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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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 47 business days, the mean closing price of a certain stock was $116.08. Assume the population standard deviation is $10.66.
The 90% confidence interval is ( I ).
(Round to two decimal places as needed.)
Enter your answer in the edit fields and then click Check Answer.
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Transcribed Image Text:Question Help 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 47 business days, the mean closing price of a certain stock was $116.08. Assume the population standard deviation is $10.66. The 90% confidence interval is ( I ). (Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Check Answer 3 parts ręmaining Clear All 11:00 AM 1/12/2021 1 e Type here to search Del PrtScn F8 End F10 POUP F1 PgDn Ins Home F9 F12 DII F5 F6 F7 Esc F2 F3 F4 F1 & Backspace #3 $4 6. 7 8 1 2 Q W E R. T Y Tab K F G H. AL Caps (8) く P
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