Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
7th Edition
ISBN: 9781337298353
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
Publisher: South-Western College Pub
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2-Proportion Test
In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.
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Chapter 12.3, Problem 19E

The following sample data represent the number oflate and on-time flights for Delta, United,
and US Airways (Bureau ofTransportation Statistics, March 2012).
Chapter 12.3, Problem 19E, The following sample data represent the number oflate and on-time flights for Delta, United, and US

  1. Formulate the hypotheses for a test that will determine whether the population proportion of late flights is the same for all three airlines.
  2. Conduct the hypothesis test with a .05 level of significance. What is the p-value and what is your conclusion?
  3. Compute the sample proportion of late flights for each airline. What is the overall proportion of late flights for the three airlines?

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Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)

Ch. 12.1 - Test the following hypotheses for a multinomial...Ch. 12.1 - During the first 13 weeks of the television...Ch. 12.3 - The following sample data represent the number...Ch. 12 - Fuentes Salty Snacks, Inc. Six months ago Fuentes...
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