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I need help with this problems. thank you Sample Size Proportion Me Find the sample size, n, needed to estimate the percentage of adults who

I need help with this problems. thank you

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Sample Size Proportion Me Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.02 margin of error, use a confidence level of 98% and use results from a prior poll suggesting that 20% of adults have consulted fortune tellers. (Round up to the next integer.)

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