About Power

Power function

$\pi(\theta) = \Pr\{T \in {\rm Critical \; region}\; \vert \;\theta\}$

Non-null Distributions

• Fixed effects:
  Noncentral t, F, $\chi^2$, ...
• Random effects:
  Multiple of central F, $\chi^2$
• Others:
  Binomial, Poisson, ...

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