T test of mean
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Revision as of 07:03, 8 July 2011 by Chris Lawrence (talk | contribs)
Revision as of 07:03, 8 July 2011 by Chris Lawrence (talk | contribs)
<math>t = \frac {\bar{y}-\mu_0}{s_\bar{y}}</math>, where <math>\mu_0 </math> is the test value and <math>\text{df} = n-1</math>.