Peer reviewed
Direct linkERIC Number: EJ986047
Record Type: Journal
Publication Date: 2012
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0020-739X
EISSN: N/A
Available Date: N/A
Sample Size for the "Z" Test and Its Confidence Interval
Liu, Xiaofeng Steven
International Journal of Mathematical Education in Science and Technology, v43 n2 p266-270 2012
The statistical power of a significance test is closely related to the length of the confidence interval (i.e. estimate precision). In the case of a "Z" test, the length of the confidence interval can be expressed as a function of the statistical power. (Contains 1 figure and 1 table.)
Descriptors: Statistical Analysis, Intervals, Statistical Significance, Statistics, Mathematics Instruction, College Science, Equations (Mathematics), Sample Size
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A
