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Suppose a prior study is used to estimate a population proportion, p, as p' = 27% (= 0.27). Find the minimum sample size, n, required

Suppose a prior study is used to estimate a population proportion, p, as p' = 27% (= 0.27). Find the minimum sample size, n, required to estimate p to within a Margin of Error, E, of 3 percentage points, with a confidence level of 95%

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