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ERIC Number: EJ792693
Record Type: Journal
Publication Date: 2008-May
Pages: 5
Abstractor: Author
Reference Count: 0
ISSN: ISSN-0025-5769
Why Aren't They Called Probability Intervals?
Devlin, Thomas F.
Mathematics Teacher, v101 n9 p647-651 May 2008
This article offers suggestions for teaching confidence intervals, a fundamental statistical tool often misinterpreted by beginning students. A historical perspective presenting the interpretation given by their inventor is supported with examples and the use of technology. A method for determining confidence intervals for the seldom-discussed population proportion when the Normal distribution is not a good approximation to the Binomial is also provided. (Contains 3 figures, 1 table and bibliography.)
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A