Consider the large hospital that wants to estimate the
Consider the large hospital that wants to estimate the
Consider the large hospital that wants to estimate the average length of stay of its patients, μ. The hospital randomly samples n = 100 of its patients and finds that the sample mean length of stay is = 4.5 days. Also, suppose it is known that the standard deviation of the length of stay for all hospital patients is σ = 4 days. Use the interval estimator ± 1.96 σ to calculate a confidence interval for the target parameter, μ.
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