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Mathematics 8 Online
OpenStudy (awy):

A political candidate has asked you to conduct a poll to determine what percentage of people support her. a. The candidate wants a 3% margin of error at a 95% confidence level, what size of sample is needed if you don't have any previous polling data? b.What if in a previous poll, the candidate received 59% of the votes, what would the sample size be with the same confidence level and margin of error?

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