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To: Lane3 who wrote (21033)	6/14/2006 6:36:34 PM
From: TimF	Respond to of 541647

Margin or error calculator americanresearchgroup.com It uses a confidence level of 95%, so not only do you have to deal with the stated margin of error but you also have a 1 in 20 chance (assuming no other form of error or bias) of the result being outside the Margin of error en.wikipedia.org And then of course there are all the possible non-sampling errors pollingreport.com Still your right the sampling error (at 95% confidence level or less) isn't huge for sampling a few thousand out of 1.2 billion.