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A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 10%

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A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 10% margin of error at a 90% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places. Hint: Video E'T' [+] C]

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