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Originally Posted by ThomasMc
My good friend - who until she retired recently was a statistics professor at a well known college - would vehemently disagree with your statement.
I wouldn't even want to be in the same room when you set her off with that!
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Well, you do not need a couple of thousands. See for example:
http://parkinslot.blogspot.com/2003/...atistical.html
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and so it goes till you find that an ideal sample for a 10% error margin hardly moves above 350 no matter how big the universe (it's 500 for 5%).
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