ttest
Testing for Differences Between Two Groups: ttest ... Related Samples: Running the tTest. References. 1. Overview ... If the variances are equal then use a ttest. ... http://web.uccs.edu/lbecker/SPSS/ttest.htm
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The T-Test
To test the significance, you need to set a risk level (called the alpha level) ... You also need to determine the degrees of freedom (df) for the test. ... http://www.socialresearchmethods.net/kb/stat_t.htm
Ttest
Training course in statistics and data modeling ... The T statistic. The assumptions. The variance is known. The variance is unknown. ... The one sample t- test ... http://www.aiaccess.net/tutor_demo/tutor_t_1.htm
Student's t-test - Wikipedia, the free encyclopedia
There are different versions of the ttest depending on whether the two samples are ... The t statistic to test whether the means are different can be ... http://en.wikipedia.org/wiki/Student's_t-test
New View of Statistics: TTest & ANOVA-1
( Note that this approach is not the same as a paired ttest. That comes later. ... With a ttest, the thing we're most interested in is, of course, a comparison of ... http://www.sportsci.org/resource/stats/ttest.html
t tests (Student's)
Training course in statistics and data modeling ... The ttest on independent samples compares the means of two groups of observations. ... http://www.aiaccess.net/English/Glossaries/GlosMod/e_gm_t_test.htm
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Educational Research - t-test - Del Siegle
... data we calculate a test statistic with a formula. ... Assumptions Underlying the tTest ... The test was called Student Test (later shortened to ttest) ... http://www.gifted.uconn.edu/siegle/research/t-test
