1. Suppose that further analysis of the McBurger restaurant (Example 18.1-1) rev

Question

1. Suppose that further analysis of the McBurger restaurant (Example 18.1-1) reveals the following additional results: Number of cashiers Idleness (%) (a) What is the utilization of the system (expressed as the percentage of time the 0 8 12 18 29 36 42 employees are busy) when the number of cashiers is five? (b) The manager wants to keep the average waiting time around 3 minutes and simultaneously, maintain the efficiency of the facility at approximately 90%. Can the two goals be achieved simultaneously?

Explanation / Answer

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Number of cashiers 1 2 3 4 5 6 7

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Idleness(%) 0 8 12 18 29 36 42

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1.Answer

Here, number of employee is 5 and Idleness 29%.

so, Utilization of the system=(100-29)% = 71 %

2.Answer

Yes,both goals can be achieved simultaneously.

Because ,when number of cashiers was 2 then its utilization was 92% and 8% Idleness.

so,we can achieve the both goals.

  

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