Asked by Cheri
What happens to the power of the z test, when the standard deviation increases?
The deviation from the mean must be larger to obtain the same significance level. I'm not familiar with the term "power" (we don't use that term in physics), but I would guess that this means that the power becomes less.
If standard deviation increases, power will decrease.
The deviation from the mean must be larger to obtain the same significance level. I'm not familiar with the term "power" (we don't use that term in physics), but I would guess that this means that the power becomes less.
If standard deviation increases, power will decrease.
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