The number of staff personnel needed to handle patients at a medical center is determined by the
Question:
The number of staff personnel needed to handle patients at a medical center is determined by the mean time that patients must wait before being attended to by a physician. For a random sample of 100 previously recorded emergencies, the sample mean waiting time was 72 minutes, with a standard deviation of 28 minutes.
a. What is a 50 percent confidence interval for the actual mean waiting time?
b. What is a 99 percent confidence interval for the actual mean waiting time?
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Calculation and Explanation a Confidence interval Sample mean zscore x Standard d...View the full answer
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Labindao Antoque
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