John Zorich (statistical consulting, training, and software)

= SQRT ( X ) Cube root (X) = ( X ) ^ ( 1 / 3 ) Quadratic (X) = ( X ) ^ 2. Cubic (X) = ( X ) ^ 3. Logarithm (X) ... if power = 0.90, then there is 100 x 0.90 = 90% confidence in the "non-significant" conclusion; that is, power is the confidence in the claim that the Alternate Hypothesis is not the population parameter). ... "Simplified Method ... ................
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