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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.

We have to check whether it is likely that an individual stayed more than five days in the hospital and justify our answer.

Step-by-step explanation

Step 1.

From the above, we can write .

The probability that an individual stayed more than five days in the hospital is given by,

Therefore, the probability that an individual stayed more than 5 days in the U.S hospital is .

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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