Question
[Suppose] Spinneys Supermarket at Emaar Residence has three clerks (cashiers) serving customers. On average, 30 customers are being served by a clerk every 10 minute.
[Suppose] Spinneys Supermarket at Emaar Residence has three clerks (cashiers) serving customers. On average, 30 customers are being served by a clerk every 10 minute. For Spinneyss normal working period, customers arrive at the rate of 2 customers per minute. Assume arrivals follow the Poisson distribution and service times follow the exponential distribution.
What is the average time a customer spends in the waiting line
Select one:
a. 0.7789
b. 0.0046
c. 0.2638
d. 0.5528
What is the probability of 5 customers in the system:
Select one:
a. 0.0158
b. 0.0012
c. 0.1462
d. 0.0296
What are the arrival and service rates:
Select one:
a. = 3 customers per minute and = 3 customers per minutes
b. = 2 customers per minute and = 3 customers per minutes
c. = 3 customers per minute and = 2 customers per minutes
d. = 2 customers per minute and = 2 customers per minutes
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