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Question:
(a) Discuss briefly the four basic components of any queueing system.
(b) Explain what you understand by the following models:
(i) (M| M | 1 : N | FCFS)
(ii) (M| M | S : ∞| SIRO)
(iii) (M| Ek | 1 : ∞ | FCFS)
(c) A supermarket has two ladies at the sales counters. Given that the service for each customer is exponential with mean 6 minutes and customers arrive in a Poisson fashion at the counter at the rate of 15 per hour, Determine
(i) the expected percentage of idle time for each lady at the sales counter.
(ii) The probability of having to wait for service.
Graphs of Time Series A time series is a sequence of values corresponding to successive points of time. Time series are graphed with time on the x axis and the oth
operation research scope
#A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper
Case Study - Research Process Tomzak and Hale inc was a medium sized marketing research firm located in a large mind western city. Bob Lynn a marketing vice president
Each day you own 0 or 1 stocks of certain commodity. The price of the stock is a stochastic process that can be modeled as a Markov chain with transition rates as follows
impact of sequencing problem
Inherent forces fomenting conflicts of interest Several forces have coalesced to increase the incidence of conflicts of interest in the medical industry: the vertical integrat
Machine Tabulation This methods of tabulating information is generally used in case of extensive large scale surveys. Mechanical sorting and tabulating equipments and su
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Uncertainly : There is a great uncertainly about economic and general environment. With economic growth uncertainty is also growing's. this makes each decisions costlier
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