Formula Review

  1. Mean: images
  2. Standard deviation: images
  3. Control limits for x-bar charts: Upper control limit

    images

  4. Control limits for x-bar charts using sample range as an estimate of variability:

    images

  5. Control limits for R-charts: images
  6. Control limits for p-charts: images
  7. Control limits for c-charts: images
  8. Measures for process capability:

    images

  9. Average outgoing quality: AOQ = (Pac)p

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