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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
3-92. The Cozine Corporation operates a garbage hauling business. Up to this point, the company has been charged a flat fee for each of the garbage trucks that enters the county landfill. The flat fee is based on the assumed truck weight of 45,000 pounds. In two weeks, the company is required to appear before the county commissioners to discuss a rate adjustment. In preparation for this meeting, Cozine has hired an independent company to weigh a sample of Cozine’s garbage trucks just prior to their entering the landfill. The data file Cozine contains the data the company
has collected.
a. Based on the sample data, what percentile does the
45,000-pound weight fall closest to?
b. Compute appropriate measures of central location for the data.
c. Construct a frequency histogram based on the sample data. Use the 2k     n guideline (see
Chapter 2) to determine the number of classes. Also, construct a box and whisker plot for these data. Discuss the relative advantages of histograms and box and whisker plots for
presenting these data.
d. Use the information determined in parts a–c to develop a presentation to the county commissioners. Make sure the presentation attempts to answer the question of whether Cozine deserves a rate reduction.
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CHAPTER 3 | Describing  Data Using Numerical Measures      135
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Integrative Application Exercises
Chapters 1 to 3 have introduced you to the basics of descriptive statistics. Many of the business application problems, advanced business application problems, and cases in these chapters will
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your state. You are given the following frequency distribution on banks in your state:
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give you practice in performing descriptive statistical analysis.
Deposit Size
Number of
Total Deposits
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However, too often you are told which procedure you should use, or you can surmise which to use by the location of the exercise. It is important that you learn to identify the appropriate procedure on your own in order to solve problems for test purposes. But more important, this ability is essential throughout your career when you are required to select procedures for the tasks you will undertake. The following exercises will provide you with identification practice.
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