From long-term observation, it is known that the waiting-time for non-ambulance adult arrivals in a hospital's A&E has a mean of 120 minutes and a standard deviation of 50 minutes. On a given day, there are 200 such arrivals. Management want to set a daily target for the mean waiting time that will be met 95% of the time with 200 arrivals. What mean should they specify? O 202.24 minutes O 124.53 minutes O 126.93 minutes O 125.82 minutes

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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From long-term observation, it is known that the waiting-time for non-ambulance adult
arrivals in a hospital's A&E has a mean of 120 minutes and a standard deviation of 50
minutes. On a given day, there are 200 such arrivals.
Management want to set a daily target for the mean waiting time that will be met 95% of
the time with 200 arrivals. What mean should they specify?
O 202.24 minutes
O 124.53 minutes
O 126.93 minutes
O 125.82 minutes
Transcribed Image Text:From long-term observation, it is known that the waiting-time for non-ambulance adult arrivals in a hospital's A&E has a mean of 120 minutes and a standard deviation of 50 minutes. On a given day, there are 200 such arrivals. Management want to set a daily target for the mean waiting time that will be met 95% of the time with 200 arrivals. What mean should they specify? O 202.24 minutes O 124.53 minutes O 126.93 minutes O 125.82 minutes
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