Students Arrive Randomly at the Help Desk of the Computer

question 99

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. How many students, on average, will be waiting in line at any one time?

• A) 0.9 students
• B) 1.5 students
• C) 3 students
• D) 4 students
• E) 36 students

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Definitions:

Direct Materials Inventory

The stock of raw materials that will be directly used in the production of goods, readily available for the manufacturing process.

Direct Labor Hours

The total hours worked by employees directly involved in the production of goods or services.

Factory Overhead

All indirect costs associated with the production process, excluding direct materials and direct labor, such as utilities, maintenance, and managerial salaries.

Direct Labor Dollars

The total amount of money spent on wages for employees who are directly involved in the production of goods.