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adding two-sample t-test assuming unequal varirance aka Welch test
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@proccaserra
proccaserra committed May 6, 2014
1 parent d210e03 commit 34d43b9
Showing 1 changed file with 128 additions and 2 deletions.
130 changes: 128 additions & 2 deletions src/ontology/stato.owl
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Original file line number Diff line number Diff line change
Expand Up @@ -914,6 +914,9 @@
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<Declaration>
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</Declaration>
<Declaration>
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Expand Down Expand Up @@ -7296,6 +7299,71 @@
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Expand Down Expand Up @@ -20528,6 +20596,59 @@ http://stat.ethz.ch/R-manual/R-patched/library/stats/html/binom.test.html</Liter
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<Literal xml:lang="en" datatypeIRI="&rdf;PlainLiteral">exact binomial test</Literal>
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<Literal xml:lang="en" datatypeIRI="&rdf;PlainLiteral">Welch, B. L. (1947). &quot;The generalization of &quot;Student&apos;s&quot; problem when several different population variances are involved&quot;. Biometrika 34 (1–2): 28–35. doi:10.1093/biomet/34.1-2.28</Literal>
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<Literal xml:lang="en" datatypeIRI="&rdf;PlainLiteral">adapted from wikipedia:
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last accessed: 2014-05-06</Literal>
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Expand Down Expand Up @@ -20603,6 +20724,11 @@ It uses a t-distribution for the test and assumes that the variables in the popu
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Expand All @@ -20616,12 +20742,12 @@ http://www.psychology.emory.edu/clinical/bliwise/Tutorials/TOM/meanstests/tind.h
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Expand Down

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