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Reply to "h1n1 shot reaction - hives"
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[quote=Anonymous]For the record, as long as you have sampling bias (like, say, people who self-select to post on a bulletin board) you CAN NOT have statistical significance. It's not a random sample, therefor absolute numbers of posts are irrelevent. And this leaves aside the fact that on an anonymous bulletin board you can't know how many actual posters there were...[/quote]
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