A Service Counter Employs Two Servers

question 17

Multiple Choice

A service counter employs two servers.On average,a server requires 8 minutes to process a customer and service times follow an exponential distribution.Customers arrive at the counter at the rate of 12 per hour according to a Poisson distribution.The average amount of time spent by a customer waiting in line is approximately

• A)0.370 minutes
• B)2.844 minutes
• C)14.22 minutes
• D)22.20 minutes

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Definitions:

Laryngoscopy

A medical procedure involving the examination of the larynx and vocal cords using a laryngoscope.

Rhinopharyngography

A radiographic examination of the nasal passages and pharynx using a contrast medium to diagnose obstructions or abnormalities.

Pneumonia

An infection that inflames the air sacs in one or both lungs, which may fill with fluid or pus, causing cough with phlegm or pus, fever, chills, and difficulty breathing.

Pertussis

Also known as whooping cough, a highly contagious respiratory tract infection characterized by severe coughing fits.