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Line 1: I corrected the notation for "variability of the process" to standard deviation to avoid confusion between sigma and sigma squared, variance/variability, and standard deviation. ----Hyoga 11/26/2007 There is no point in listing an equation if you are not going to define what the variables mean. Namely, what on earth is do USL and LSL stand for? Even sigma should be defined for those who do not know what they are looking at. :Fixed. --mabahj 11:00, 12 July 2006 (UTC)

Talk:Process capability index: Difference between revisions