We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Teaching What Degrees of Freedom Are In Statistics.
- Authors
Sutrick, Kenneth
- Abstract
One of the most confusing topics in statistics is degrees of freedom. Everyone is taught that the sample standard deviation has n -- 1 degrees of freedom. Why is this the case since you use all n data points to compute the standard deviation? The paper shows why this is the case by showing that the sample standard deviation can be broken down into n - 1 independent parts and that the last deviation can be absorbed into these independent parts. After that a related technique shows what degrees of freedom are about in the important cases of regression and analysis of variance.
- Subjects
EFFECTIVE teaching; DEGREES of freedom; EDUCATIONAL quality standards; MULTIPLE regression analysis; ANALYSIS of variance; MATHEMATICAL variables; ALGORITHMS
- Publication
Business Education Innovation Journal, 2017, Vol 9, Issue 2, p173
- ISSN
1945-0915
- Publication type
Article