Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the​ 95% confidence interval. The sample standard deviation is given.   Margin of​ error, E=2.8 ​minutes; sample standard​ deviation, s=45.1 minutes The required sample size is ___?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the​ 95% confidence interval. The sample standard deviation is given.
 
Margin of​ error,
E=2.8
​minutes; sample standard​ deviation,
s=45.1
minutes
The required sample size is ___?
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Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the​ 95% confidence interval. The sample standard deviation is given.

Margin of error, E= 2.8 minutes, sample standard deviaion,s= 31.9 minutes

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