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A local community association wants to poll a random sample of its 315 members to estimate the proportion likely to attend a late spring function.

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A local community association wants to poll a random sample of its 315 members to estimate the proportion likely to attend a late spring function. The number of sample observations should be sufficiently large to ensure that a 98% confidence interval for the population extends at most 0.06 on each side of the sample proportion. How large of a sample is necessary

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