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Process Capability Indices 2016-01-20

The calculation of a mathematical formula is no substitute for thinking

  1. Bev D
    Process Capability indices are nearly useless. Aside from the many statistical concerns with these indices, it is patently absurd to reduce variation to a single number in the currently popular manner.

Recent Reviews

  1. judegu
    judegu
    5/5,
    Version: 2016-01-20
    I have confessed here. I, myself, also develope some methods to get GOOD cpk and ppk. Just Cpk(or Ppk) > 1.33 or 1.67 means nothing to me. In most cases, sadly, the source of these results are questionable.