Arena Material: chapter 5 - AS Nida

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odel 5-3: Overall Call-Center Stats eplication Conditions Run > Setup > Replication Parameters, Initialize Between Replications Statistics? System? Details in text Default is both – only way to get truly IID replications – Destroys overnight tech-support research jobs, but to do otherwise would complicate model – so accept Run > Setup > Project Parameters Turned off all but Costing Statistics Collection, for speed – Costing required to get ENTITY.WAITTIME
odel 5-3: Overall Call-Center Stats esults Results from five replications Base Case – no additional staff, still 26 trunk lines Total Cost = $22,500.07 Percent Rejected = 12.9% Add 3 of each of five staff types, 3 more trunk lines Total Cost = $22,668.69 Is this better? Percent Rejected = 1.6% Use in Chapt. 6 for statistically valid experiments Statistical precision Compare several alternatives, select best Average over 5 replications Conf. int. half-widths in output Search for configuration that minimizes cost, subject to upper limit on percent rejected
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Page 3 and 4: hat We’ll Do ... (cont’d.) Mode
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Arena Material: chapter 5 - AS Nida

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