Exhibit 13-1A Grocery Store Manager Would Like to Use an Analytical

question 6

Essay

Exhibit 13-1A grocery store manager would like to use an analytical queueing model to study the lines of customers that form in front of the checkout stations in the store. During a period of time when business is steady, several store employees have gathered data on customer interarrival times, which are shown below.

-[Part 2] Refer to Exhibit 13-1. Assuming an exponential distribution with the parameter λ you obtained in Part 1, what is the probability that a customer interarrival time will be less than 2 minutes?

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Definitions:

Method Test

A procedure designed to validate the functionality of a specific method in a codebase, ensuring it operates as expected.

Bottom-Up Test

A testing approach where the lowest levels of software components are tested first, and higher-level components are tested step by step after that.

ToString Method

The toString method in Java is used to create a String representation of an object, often overridden in classes to provide a meaningful description of an object.

Equals Method

A method in Java used to compare the contents of two objects for equality, rather than comparing their references.