Textbook ExpertVerified Tutor
14 Nov 2021
Given information
Given that, the average length of maternity stay in a U.S. hospital is said to be 2.4 days with a standard deviation of 0.9 days. We randomly survey 80 women who recently bore children in a U.S. hospital.
Then we have to check if we were, to sum up, the women’s stays, is it likely that collectively they spent more than a year in the hospital and justify our answer.
Step-by-step explanation
Step 1.
From the given information we have,
Then the probability that collectively they spent more than a year in the hospital is given by,
Therefore the probability that collectively they spent more than a year in the hospital is approximately .
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