SOLUTION: A political candidate has asked you to conduct a poll to determine what percentage of people support her.
If the candidate only wants a 1.5% margin of error at a 99% confidence le
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If the candidate only wants a 1.5% margin of error at a 99% confidence le
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Question 1182709: A political candidate has asked you to conduct a poll to determine what percentage of people support her.
If the candidate only wants a 1.5% margin of error at a 99% confidence level, what size sample is needed?
Answer with a whole number.
n = Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Use 0.5 as the most conservative measure
error=z(0.995)*sqrt(.5*.5/n)
0.015=2.576*sqrt(.25/n)
square both sides
0000225=1.658944/n
n=7373.08 or 7374
