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ume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample size 65 with a mean of 80.6 and a standard deviation of 9.4. Enter your answer as an open-interval (f.e., entheses) accurate to one decimal place (because the sample statistics are reported accurate to one imal place). C.I. - swer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 cimal places.

ume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample size 65 with a mean of 80.6 and a standard deviation of 9.4. Enter your answer as an open-interval (f.e., entheses) accurate to one decimal place (because the sample statistics are reported accurate to one imal place). C.I. - swer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 cimal places.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Assume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample of size 65 with a mean of 80.6 and a standard deviation of 9.4. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). 90% C.I. - Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to decimal places.
Transcribed Image Text:Assume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample of size 65 with a mean of 80.6 and a standard deviation of 9.4. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). 90% C.I. - Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to decimal places.
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