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 = 3.4 minutes; sample standard deviation, s = 43.4 minutes The required sample size is (Round up to the nearest whole number.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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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 = 3.4 minutes; sample standard deviation, s = 43.4 minutes

The required sample size is [ ]

(Round up to the nearest whole number.)
Transcribed Image Text: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 = 3.4 minutes; sample standard deviation, s = 43.4 minutes The required sample size is [ ] (Round up to the nearest whole number.)
Expert Solution
Step 1

The question is about sample size estimation

Given :

Sample std. deviation ( s ) = 43.4 minutes

Margin of error ( E ) = 3.4 minutes

Confidence level = 0.95

 

To find :

Sample size ( n )

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