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

question 81

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 how long does a customer wait before the checker begins serving them?

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Definitions:

Haustoria

Specialized structures of parasitic plants or fungi that penetrate host tissues to extract water and nutrients.

Root Nodules

Structures formed on the roots of certain plants, such as legumes, that house nitrogen-fixing bacteria, aiding in the conversion of atmospheric nitrogen into a form the plant can use.

Bacteria

Single-celled microorganisms that can exist either as independent (free-living) entities or as parasites, and may cause disease or be beneficial, playing key roles in processes like fermentation and decomposition.

Fungi

A kingdom of spore-producing organisms that feed on organic matter, including molds, yeast, mushrooms, and toadstools.