Exhibit 13.4 The Following Questions Refer to the Information and Output Below

question 42

Short Answer

Exhibit 13.4
The following questions refer to the information and output below.
A grocery store can serve an average of 360 customers per hour. The service times are exponentially distributed. The store has 4 checkout lines each of which serves 90 customers per hour. Customers arrive at the store at a Poisson rate of 240 customers per hour. The following queuing analysis spreadsheet was developed from this information.
-Refer to Exhibit 13.4. Based on this report what is the average number of customers waiting for a checker?

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Definitions:

Conversion Efficiency

A measure of how effectively a system converts input energy into output energy or work.

Food Pyramid

A visual representation to illustrate the recommended balance of different food groups in a healthy diet.

Available Energy

The portion of energy in a system that can be used to perform work.

Trophic Level

A position that an organism occupies in a food chain, which is a way of categorizing living things according to how they gain their energy.