Which of the following is false about the Assumptions of queuing model? The elapsed time since the start of the queue is sufficiently long so that system in stable Service discipline followed in FCFS The mean arrival rate is less than the mean service rate The waiting space available for customers in the queue is finite.
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- Which of the following is false about the Assumptions of queuing model? The waiting space available for customers in the queue is finite. Service discipline followed in FCFS The mean arrival rate is less than the mean service rate O The elapsed time since the start of the queue is sufficiently long so that system in stableIn queuing theory and modeling, if 1/μ represents mean service time. Whatdoes μ represent? Service rateInterarrival time Arrival rate NoneWhat effect will decreasing the variability of the service rate have on the performance of the queuing system (all else being the same)? reduce customer average waiting time in the system cannot be determined without additional information while more customers, they arrive at separate times & create a shorter queue the queue moves faster thanks to a faster arrival rate
- In a queuing model which follows the single server operation has ? = 2 and ? = 8. The evrage number in the system Ls is ____ and the utilization of the system is ____ a. 0.33 ; 25% b. 3 ; 100% c. 6 ; 25% d. 4 ; 33%A self-service store employs one cashier at its counter. Nine customers 'arrive on an average every 5 minutes while the cashier can serve 10 customers in 5 minutes. Assuming Poisson distribution for arrival rate and exponential distribution for service time, find 1. Average number of customers in the system. 2. Average number of customers in the queue or average queue length. 3. Average time a customer spends in the system. 4. Average time a customer waits before being served. A.1(Random variables) Prove that the mean and standard deviation of the exponential distribution are equal (Queueing Theory) The time between failures of the kencore refridgerator is known to be exponential with mean values 9000 hours (about 1 year of operation), and the company issues a 1 year warranty on the refridgerator. what are the chances that the breakdown repair will be covered by the warranty?