Consider the patient data in Example 2-8. Suppose that

Chapter 3, Problem 118E

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QUESTION:

Consider the patient data in Example 2-8. Suppose that patients are randomly selected with replacement from the total for hospital 4. What is the smallest sample size needed so that

the probability is at least 90% that at least one patient is LWBS?

Example 2-8

Questions & Answers

QUESTION:

Consider the patient data in Example 2-8. Suppose that patients are randomly selected with replacement from the total for hospital 4. What is the smallest sample size needed so that

the probability is at least 90% that at least one patient is LWBS?

Example 2-8

ANSWER:

Solution :

Step 1 of 4:

Given that the patients are randomly selected with replacement from the total for hospital 4.

Our goal is:

We need to find the minimum sample size ‘n’ such that the probability is at least 90% that at least one patient decides to LWBS.

The probability that visit to hospital 4 resulted in LWBS is

P(visit to hospital 4) =

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