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For each kind of queueing system listed in Prob. 17.3-1, briefly describe the nature of the cost of service and the cost of waiting that would need to be considered in designing the system.
Prob. 17.3-1
Identify the customers and the servers in the queueing system in each of the following situations:
(a) The checkout stand in a grocery store.
(b) A fire station.
(c) The toll booth for a bridge.
(d) A bicycle repair shop.
(e) A shipping dock.
(f) A group of semiautomatic machines assigned to one operator.
(g) The materials-handling equipment in a factory area.
(h) A plumbing shop.
(i) A job shop producing custom orders.
(j) A secretarial typing pool.
Is it possible to find an elementary matrix E such that EB = C? Justify your answer in a proof. Write the matrix 3 -2 as a product of elementary matrices.
A group of young businesswomen wish to open a high fashion boutique in a vacant store, but only if the average income of households in the area is at least $25,00.A random sample of 9 households showed the following results:
(a) At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule. (b) Is this a close decision?
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Use the expected value approach to decide whether to market the new product. Because of the high dollar values involved, especially the possibility of a $100,000 loss.
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some students that attend college students work full or part time. how much did your working college friends each earn
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