Paired t-Test
Given two paired sets 
and 
of 
measured values, the paired 
-test determines if they differ from each other ina significant way. Let
 |  |  | |
 | |  |
then define
by
This statistic has
Degrees of Freedom. A table of Student's t-Distribution confidence interval can be used todetermine the significance level at which two distributions differ.
See also Fisher Sign Test, Hypothesis Testing, Student's t-Distribution, Wilcoxon Signed Rank Test
References
Goulden, C. H. Methods of Statistical Analysis, 2nd ed. New York: Wiley, pp. 50-55, 1956.
- Trihedron
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