26) In queuing analysis, total expected cost is the sum of expectedplus expected
ID: 363746 • Letter: 2
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26) In queuing analysis, total expected cost is the sum of expectedplus expected A) service costs, arrival costs B) facility costs, calling costs C) calling cost, inventory costs D) calling costs, waiting costs E) service costs, waiting costs 27) An arrival in a queue that reneges is one who A) after joining the queue, becomes impatient and leaves. B) refuses to join the queue because it is too long. C) goes through the queue, but never returns. D) jumps from one queue to another, trying to get through as quickly as possible. 28) The customer who arrives at a bank, sees a long line, and leaves to return another time is A) balking. B) cropping C) reneging. D) blithering 29) The three major characteristics of the input source that generates arrivals or customers for the service system are A) size, demographics, and behavior. B) size, pattern, and behavior. C) demographics, pattern, and behavior. D) size, demographics, and pattern. 30) A vendor selling newspapers on a street corner is an example of a A) single-channel, multiphase system. B) single-channel, single-phase system. C) multichannel, multiphase system. D) multichannel, single-phase system. 31) Most systems use a queue discipline known as A) shortest processing time. B) longest processing time. C) FIFO. D) earliest due date.Explanation / Answer
26. E. Service costs, waiting costs
Total expected cost = expected service costs + expected waiting costs
27. A. After joining the queue, becomes impatient and leaves.
Reneging is when a person gets impatient because of the length of the queue or any other reason and leave the queue.
28. A. Balking
Balking is when a person refuses to join the queue because the queue is too long.
29. B. Size, pattern and behavior
Size of expected customers or population, pattern of how they arrive and how they behave in the arrival are three input sources.
30. B. Single-channel, single - phase system
Because there is only one channel(street seller) and one phase(flow) .
31. C. FIFO
FIFO means first in first out. The one who comes first is served first, it is the queuing discipline.
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