Question

A hospital administrator wants to estimate the mean length of stay for all inpatients using that hospital. Using a random sample of 100 records of patients for the previous​ year, she reports that​ "the sample mean was 5.5 days. In repeated random samples of this​ size, the sample mean could be expected to fall within one day of the true mean about 99​% of the​ time." Explain the meaning of this sentence from the​ report, showing what it suggests about the 99​% confidence interval.

Answer 1