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Old 05-24-2011, 05:54 PM   #2 (permalink)
Bill in Houston
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Depends how consistent your results are. If you get 15.3, 15.0, 15.2, then that is a good baseline. If you get 13, 17, 15, well, not so much. The more consistent you are beforehand, the easier it is to see, and to statisticall prove, a change.
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