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About: The Chi-Square Distribution: Test of Independence

Module by: Susan Dean, Barbara Illowsky, Ph.D.. E-mail the authors

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Metadata

Name: The Chi-Square Distribution: Test of Independence
ID: m17191
Language: English (en)
Summary: This module describes how the chi-square distribution can be used to test for independence.
Subject: Mathematics and Statistics
Keywords: chi, distribution, elementary, independence, square, statistics, test
License: Creative Commons Attribution License CC-BY 3.0
Authors: Susan Dean (susanldean45@gmail.com), Barbara Illowsky, Ph.D. (illowskybarbara@deanza.edu)
Copyright Holders: Maxfield Foundation (cnx@cnx.org)
Maintainers: Susan Dean (susanldean45@gmail.com), Barbara Illowsky, Ph.D. (illowskybarbara@deanza.edu), Connexions (cnx@cnx.org)
Latest version: 1.12 (history)
First publication date: Jul 5, 2008 2:22 pm -0500
Last revision to module: Jun 19, 2012 8:12 pm -0500

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Version History

Version: 1.12 Jun 19, 2012 8:12 pm -0500 by Susan Dean
Changes: 
The Chi-Square Distribution: Test of Independence: Updated Example 1, fixed table in Example 3 and added the note "The expected value for each cell needs to be at least 5 in order to
use this test."
Version: 1.11 Jun 19, 2012 8:00 pm -0500 by Susan Dean
Changes: 
The Chi-Square Distribution: Test of Independence: Updated Example 1, fixed table in Example 3 and added note "NOTE: The expected value for each cell needs to be at least 5 in order to
use this test."
Version: 1.10 Feb 21, 2009 10:39 am -0600 by Susan Dean
Changes: 
The Chi-Square Distribution: Test of Independence:  Updated glossary item "Contingency Table."
Version: 1.9 Feb 5, 2009 11:10 am -0600 by Susan Dean
Changes: 
The Chi-Square Distribution: Test of Independence:  In the table with title "Number of Hours Worked Per Week by Volunteer Type (Observed)," added the column totals and the row totals.  Under this table, completed the phrase "The table contains" with the phrase "observed (O) values (data).
Version: 1.8 Oct 27, 2008 9:19 pm -0500 by James Cooper
Changes: 
roles updated
Version: 1.7 Jul 15, 2008 9:40 am -0500 by Connexions
Changes: 
removed image width params from media tags
Version: 1.6 Jul 9, 2008 3:57 pm -0500 by Connexions
Changes: 
table corrections again
Version: 1.5 Jul 9, 2008 3:52 pm -0500 by Connexions
Changes: 
table corrections
Version: 1.4 Jul 9, 2008 10:18 am -0500 by Connexions
Changes: 
Corrected example solution
Version: 1.3 Jul 8, 2008 8:00 pm -0500 by Connexions
Changes: 
post review edits
Version: 1.2 Jul 7, 2008 5:41 pm -0500 by Connexions
Changes: 
post review updates
Version: 1.1 Jul 5, 2008 2:42 pm -0500 by Connexions
Changes: 
Initial publication

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American Chemical Society (ACS) Style Guide:

Dean, S.; Illowsky, B. The Chi-Square Distribution: Test of Independence, Connexions Web site. http://cnx.org/content/m17191/1.12/, Jun 19, 2012.

American Medical Assocation (AMA) Manual of Style:

Dean S, Illowsky B. The Chi-Square Distribution: Test of Independence [Connexions Web site]. June 19, 2012. Available at: http://cnx.org/content/m17191/1.12/.

American Psychological Assocation (APA) Publication Manual:

Dean, S., & Illowsky, B. (2012, June 19). The Chi-Square Distribution: Test of Independence. Retrieved from the Connexions Web site: http://cnx.org/content/m17191/1.12/

Chicago Manual of Style (Bibliography):

Dean, Susan, and Barbara Illowsky. "The Chi-Square Distribution: Test of Independence." Connexions. June 19, 2012. http://cnx.org/content/m17191/1.12/.

Chicago Manual of Style (Note):

Susan Dean and Barbara Illowsky, "The Chi-Square Distribution: Test of Independence," Connexions, June 19, 2012, http://cnx.org/content/m17191/1.12/.

Chicago Manual of Style (Reference, in Author-Date style):

Dean, S., & Illowsky, B. 2012. The Chi-Square Distribution: Test of Independence. Connexions, June 19, 2012. http://cnx.org/content/m17191/1.12/.

Modern Languages Association (MLA) Style Manual:

Dean, Susan, and Barbara Illowsky. The Chi-Square Distribution: Test of Independence. Connexions. 19 June 2012 <http://cnx.org/content/m17191/1.12/>.