A Small Store Is Trying to Determine If Its Current

question 30

Essay

A small store is trying to determine if its current checkout system is adequate.Currently,there is only one cashier,so it is a single-channel,single-phase system.The store has collected information on the interarrival time,and service time distributions.They are represented in the tables below.Use the following two-digit random numbers given below to simulate 10 customers through the checkout system.What is the average time in line,and average time in system? (Set first arrival time to the interarrival time generated by first random number.
Random numbers for interarrival times: 07,60,77,49,76,95,51,16,14,85
Random numbers of service times: 57,17,36,72,85,31,44,30,26,09

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Definitions:

Operating Income

A measure of a company's profit generated from its core business operations, excluding deductions of interest and tax.

Operating Leverage

An indicator of the extent to which increases in sales revenue result in an increase in operating profit, showing the level of fixed expenses within a business's cost composition.

Sales Impact

The effect of marketing and sales activities on the volume or value of product sales.

Margin of Safety

The difference between actual sales and break-even sales, indicating the extent to which sales can drop before losses occur.