QUESTION 7 In developing patient appointment schedules, a medical center wants to estimate the mean time...
QUESTION 7
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In developing patient appointment schedules, a medical center wants to estimate the mean time that a staff member spends with each patient. How large a sample should be taken if the desired margin of error is two minutes at a 99% level of confidence? Use a planning value for the population standard deviation of 8 minutes.
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Homework Answers
Population standard deviation, 
= 8
Margin of error, E = 2
At 
= 1-0.99 = 0.01, critical value, 
= ABS(NORM.S.INV(0.01/2)) = 2.576
Sample size =
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QUESTION 7
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