Difference between revisions of "T test of mean"
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<math>t = \frac {\bar{y}-\mu_0}{\frac {s_\bar{y}}{\sqrt{n-1}}}</math>, where <math>\mu_0 </math> is the test value and the <math>df = n-1</math>. | <math>t = \frac {\bar{y}-\mu_0}{\frac {s_\bar{y}}{\sqrt{n-1}}}</math>, where <math>\mu_0 </math> is the test value and the <math>df = n-1</math>. | ||
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Revision as of 07:53, 17 June 2011
<math>t = \frac {\bar{y}-\mu_0}{\frac {s_\bar{y}}{\sqrt{n-1}}}</math>, where <math>\mu_0 </math> is the test value and the <math>df = n-1</math>.