estimate the population proportion. 10

Statistics
Tutor: None Selected Time limit: 1 Day

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   

Jul 10th, 2015

Thank you for the opportunity to help you with your question!

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 

 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 10th, 2015

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