You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 95% confident that you esimate is within 1.5% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. Submit Question

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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You want to obtain a sample to estimate a population proportion. At this point in time, you have no
reasonable estimate for the population proportion. You would like to be 95% confident that you esimate is
within 1.5% of the true population proportion. How large of a sample size is required?
Do not round mid-calculation.
Submit Question
Transcribed Image Text:Safari File Edit View History Bookmarks Window Help Sun 10:15 myopenmath.com МyOpenMath b Answered: What is a point estimate for the... | bartleby b Answered: An engineer wishes to determine the... | bartleby You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 95% confident that you esimate is within 1.5% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. Submit Question
Expert Solution
Step 1

To obtain a sample to estimate a population proportion.

Given Information:

Confidence Level = 95% = 0.95

Margin of Error = 1.5% = 0.015

 

Let population proportion (p) be 0.50

Sample size (n) can be obtained using the formula:

n=Zα/2M.E2p×1-p

where, p is the population proportion, 

           M.E is the margin of error

           Zα/2 is the z-critical value at significance level α=1-0.952=0.025 

 

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