estimate the population proportion. 10

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Zjvyfba1995

Mathematics

Description

Use the given data to find the minimum sample size required to estimate the population proportion. 
 Margin of error: 0.008; confidence level: 95%; pˆ and qˆ

 unknown   

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Explanation & Answer

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what is the estimate population proportion? 

I assume it is 0.5 than 

std = sqrt(1/2*1/2/n) =0.5/sqrt(n)

for 95% confidence level, k = 1.96

0.008/(0.5/sqrt(n)) = 1.96

sqrt(n) *0.016 = 1.96

n = (1.96/0.016)^2 =15007 

 

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