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Author Question: A medical records manager would like to review hospital records in order to determine the average ... (Read 160 times)

LCritchfi

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on: Jun 24, 2018
A medical records manager would like to review hospital records in order to determine the average hospital stay for surgery patients during the past year. What sample size must be taken in order to be 95 confident that the estimate is within 1 day of the true mean? She has past studies, which indicate that  is 20.25 days.

Question 2

An auditor wishes to take a sample to verify the accounts receivable balances for a company having 500 accounts. From past history, he knows that  is 102.49 . What sample size must be taken to be 99 confident that the estimate will be within 10 of the true mean account balance?


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cdmart10

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Reply #1 on: Jun 24, 2018
Answer to Question 1

1576

Answer to Question 2

292


LCritchfi

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Reply 2 on: Jun 24, 2018
Wow, this really help

ryhom

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Reply 3 on: Yesterday
Gracias!

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