A Single-Phase Waiting-Line System Meets the Assumptions of Constant Service

question 4

Multiple Choice

A single-phase waiting-line system meets the assumptions of constant service time or M/D/1.Units arrive at this system every 12 minutes on average.Service takes a constant 8 minutes.What is the average number in the system L_s in units?

• A)2.25
• B)2.5
• C)3.0
• D)1.33
• E)5.0

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Definitions:

Peak Expiratory Flow Rate

A measurement of the highest speed at which air can be forcefully exhaled from the lungs, used in diagnosing and monitoring asthma.

Recumbent Position

A lying down posture used in medical and therapeutic settings, with variations including supine, prone, and side-lying positions.

Mouthpiece

A device attached to the end of an instrument or apparatus that is placed in or near the mouth.

Insufficient Oxygen

A condition in which the body or a region of the body is deprived of adequate oxygen supply, also known as hypoxia.