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For an SRS of 66 students, the average exam score was a 73. Assume you know the population standard deviation is 10 for this exam and there are no extreme outliers. How many individuals would you need to sample if you could only accept a margin of error of 1.0? Assume a 99% confidence level.

For an SRS of 66 students, the average exam score was a 73. Assume you know the population standard deviation is 10 for this exam and there are no extreme outliers. How many individuals would you need to sample if you could only accept a margin of error of 1.0? Assume a 99% confidence level.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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For an SRS of 66 students, the average exam score was a 73. Assume you know the population standard deviation is 10 for this exam and there are no extreme outliers. How many individuals would you need to sample if you could only accept a margin of error of 1.0? Assume a 99% confidence level.

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Given,Standard deviation(σ)=10margin of error(E)=1.0α=1-0.99=0.01α2=0.005Z0.005=2.58     (from Z-table)

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