Students Arrive Randomly at the Help Desk of the Computer

question 85

Multiple Choice

Students arrive randomly at the help desk of the computer lab. There is only one service agent, and the time required for inquiry varies from student to student. Arrival rates have been found to follow the Poisson distribution, and the service times follow the negative exponential distribution. The average arrival rate is 12 students per hour, and the average service rate is 20 students per hour. What is the average service time for this problem?

• A) 1 minute
• B) 2 minutes
• C) 3 minutes
• D) 5 minutes
• E) 20 minutes

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Definitions:

Weighted Average Method

An inventory costing method that averages out the cost of goods available for sale, weighting the cost based on quantities.

Equivalent Units

Equivalent units are a concept in cost accounting used to represent the amount of work done on incomplete units, expressed in terms of fully completed units.

Work in Process Inventory

Goods that are in the production process but are not yet completed.

Direct Materials

Materials in their unprocessed or natural state that can be directly linked and assigned to the end product during the production phase.