A new customer walks into SLC Barber Shop every 60 minutes on average, with a standard deviation of the interarrival tim

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answerhappygod
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A new customer walks into SLC Barber Shop every 60 minutes on average, with a standard deviation of the interarrival tim

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A new customer walks into SLC Barber Shop every 60 minutes on
average, with a standard deviation of the interarrival times being
60 minutes. At SLC Barber Shop, the average service time is 30
minutes, with a standard deviation of service times being 45
minutes.
1. What is the average amount of time a customer spends in
the process (in minutes) including the waiting time and the service
time?
2. What is the average number of customers waiting in line
before being served?
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