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Old 08-11-2010, 06:39 PM
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Join Date: Aug 2010
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Estimating customer waiting time

Hello,

Am wanting to computed average waiting time using mean and standard deviation for a) service time and b) interarrival rate to a call center. Not sure about the best way to calculate given this kind of information from a typical day:

Call Type Frequency CSR Time Spent (sec)
1 65% 85
2 15% 45
3 10% 30
4 5% 90
5 5% 60


Time Mean # Calls # Delayed Mean Delay (sec) # Abandoned
6:30 am 25 4 12 2
7:00 am 29 5 20 4
7:30 am 40 15 25 8
8:00 am 54 14 10 12
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