Re: Are you a winner?
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In that "are you a winner" link, I am confused. In the formula for Z-stat the denominator has (100-"SD/100")/sqrt(n), but your example above it uses a SD of 25 to get this denominator: (250/sqt(25000)).
Am I missing something here. This doesn't look like it adds up to me.
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Its supposed to be 10*"sd/100 (in PTBB)" in the numerator of the denominator. I fixed the document. The example is correct.
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