Question: A hospital supervisor is looking for ways to increase efficiency of patients checking in to the emergency room. The check-in process follows a nearly normal

A hospital supervisor is looking for ways to increase efficiency of patients checking in to the emergency room. The check-in process follows a nearly normal distribution with a mean of66

minutes and a standard deviation of21

minutes. What sample size of patient check-ins does the supervisor need in order to achievea standard error of3

minutes?

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