Waiting Line Case: Polonius National Bank

The Case. The goal of this case study was to gain a get on understanding and application skills of delay line summary. This case break the existing staffing policies for Polonius National Bank (PNB). The goal of the abbreviation was to reveal the optimal chassis of cashiers that the bank should staff using a waiting line model. Once this optimal rate of cashiers was intractable upon, it was necessary to determine for what range of goodwill costs the number of cashiers would remain the same. Data. The data was gathered at a event proposition judgment of conviction when the reach rates and mete out up magazine patterns were evaluate to be consistent on a twenty-four hour period to day basis. It was pertinacious that this time was from 9:00 A.M. to 11:30 A.M. A branch employee recorded the number of arrivals during randomly chosen transactions on several different days, during the selected time window. carry over 1.1 in the extension shows the data recorded . Also recorded by the employee was the service time each customer required to complete their transaction. The time did non include the amount of time the customers spent waiting in line. This data can be found in Table 1.2 in the appendix. Distribution Computations. With all the appropriate data acquired, an analysis was conducted. The first step in the analysis was to determine the assume arrival rate (?).

This was determined by first decision the thoroughgoing number of time segments observed, found to be 1273. The hazard of arrivals per minute was determined by dividing the number of occurrences for each arrival rate per minute, ranging from 0 customers per minute to 18 custo mers per minute, by the extreme number of o! bserved minutes. The product of the arrivals per minute and the probability was cypher for each number of arrivals. This was then summed to determine... If you want to get a full essay, order it on our website: OrderEssay.net

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