Basic Business Statistics, Student Value Edition
Basic Business Statistics, Student Value Edition
14th Edition
ISBN: 9780134685113
Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat
Publisher: PEARSON
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Types of Bias
Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative p…
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Chapter 2, Problem 94PS

The Air Travel Consumer Report, a monthly product of the Department of Transportation’s Office of Aviation Enforcement and Proceedings (OAEP), is designed to assist consumer with information on the quality of service provided by airlines. The report includes a summary of consumer complaints by industry group and by complaint category. A breakdown of 1,303 September 2016 consumer complaints based on industry group is given in the following table:

Chapter 2, Problem 94PS, The Air Travel Consumer Report, a monthly product of the Department of Transportation’s Office of , example 1

a. Construct a Pareto chart for the number of complaints by industry group. What industry group accounts for mast of the complaints?

The 1,303 consumer complaints against airlines are summarized by type in the following table:

Chapter 2, Problem 94PS, The Air Travel Consumer Report, a monthly product of the Department of Transportation’s Office of , example 2

b. Construct pie and doughnut charts to display the percentage of complaints by type. What complaint category accounts for most of the complaints?

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Chapter 2 Solutions

Basic Business Statistics, Student Value Edition

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