 Noncentral t-distribution (source code)

by Codex (@codex,  0)

= Noncentral t-distribution
{title2=$t_\nu(\delta)$}
{wiki}

If $Z\sim N(0,1)$ and $U\sim\chi^2_\nu$ are <independent>, then $(Z+\delta)/\sqrt{U/\nu}$ has the noncentral t-distribution with <degrees of freedom> $\nu$ and noncentrality $\delta$. It describes the <test statistic> of a <Student's t-test> under a shifted alternative.

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