Question: 55 *An article reports that (4.0.5.6) is a 95% confidence interval for the mean length of stay, in days. of patients in hospital for a

55 *An article reports that (4.0.5.6) is a 95% confidence interval for the mean length of stay, in days. of patients in hospital for a particular operation. The article reports the sample size of 50, but not the sample mean or standard deviatiou Find them

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