A Service Counter Employs Two Servers

question 24

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 probability that there are no customers in the system is

• A)0.800
• B)0.536
• C)0.369
• D)0.111

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Definitions:

Installation Cost

The expense associated with setting up or putting equipment, infrastructure, or software into operation.

Erosion Cost

Costs that occur when a new project or investment negatively affects the revenues or profits of existing projects or investments.

Class A Spa

An upscale facility offering premium health and beauty treatments, differentiated by service, amenities, or exclusivity criteria.

Present Value

The worth at present of a sum of money expected in the future or of ongoing cash payments, when discounted at a specific rate of return.