Question: A physical therapy office would like to estimate the proportion of patients referred by local doctors. What size sample would be required to estimate the

A physical therapy office would like to estimate the proportion of patients referred by local doctors. What size sample would be required to estimate the population proportion of doctor referrals within 0.08 at the 90% confidence level? a) What is the z-value? b) What is the margin of error? c) What is the sample size, n

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