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Suppose a national survey intends to identify the prevalence of Hepatitis C in a population of intravenous drug users. Out of a sample of 6,458

Suppose a national survey intends to identify the prevalence of Hepatitis C in a population of intravenous drug users. Out of a sample of 6,458 a total of 754 were confirmed to have the disease.

A)Calcuate a SE using the plus-four method.

B)Construct a 99% confidence interval about the estimate.

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