Six Sigma Quick References           mail: info@vivocorp.in
A Six Sigma Project Life Cycle                                 mail: info@vivocorp.in
Which Test / Tool to Choose    (output)                  (input)                                        mail: info@vivocor...
Variable Gauge R&R acceptable criteria for Minitab OutputComponents of VariationGage R&R                                  ...
Sources of Variation in a Process                              Observed Process                                 Variation ...
Box and Whisker Plots     Min                   Q1                      M                       Q3               Max  smal...
Box and Whisker Plots                                       80                                                            ...
Available at :http://www.slideshare.net                            mail: info@vivocorp.in
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Six sigma quick references

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Six sigma quick references

  1. 1. Six Sigma Quick References mail: info@vivocorp.in
  2. 2. A Six Sigma Project Life Cycle mail: info@vivocorp.in
  3. 3. Which Test / Tool to Choose (output) (input) mail: info@vivocorp.in
  4. 4. Variable Gauge R&R acceptable criteria for Minitab OutputComponents of VariationGage R&R %ContributionSource VarComp (of VarComp) Criteria %Contribution % Tolerance % ProcessTotal Gage R&R 0.0044375 10.67 (of Var Comp) (SV/Toler) (SV/Proc) Repeatability 0.0012917 3.10 Marginally <9% <30% <30% Reproducibility 0.0031458 7.56 Operator 0.0009120 2.19 Acceptable Operator*Part 0.0022338 5.37 GoodPart-To-Part 0.0371644 89.33 <4% <20% <20%Total Variation 0.0416019 100.00 Excellent <1% <10% <10% Study Var %Study Var %Tolerance %ProcessSource StdDev (SD) (6 * SD) (%SV) (SV/Toler) (SV/Proc)Total Gage R&R 0.066615 0.39969 32.66 28.55 37.01 Repeatability 0.035940 0.21564 17.62 15.40 19.97 Reproducibility 0.056088 0.33653 27.50 24.04 31.16 Operator 0.030200 0.18120 14.81 12.94 16.78 Operator*Part 0.047263 0.28358 23.17 20.26 26.26Part-To-Part 0.192781 1.15668 94.52 82.62 107.10Total Variation 0.203965 1.22379 100.00 87.41 113.31Number of Distinct Categories = 4 In addition , Number of Distinct Categories >= 4 mail: info@vivocorp.in
  5. 5. Sources of Variation in a Process Observed Process Variation Actual Process Measurement variation VariationLong Term Short Term Variation Variation due Variation due Process Process Within a to gauge to operator Variation Variation Sample Accuracy or Reproducibility Bias Repeatability Stability Linearity mail: info@vivocorp.in
  6. 6. Box and Whisker Plots Min Q1 M Q3 Max smallest First, Second and Third Quartiles largest value (Second Quartile is the Median, M) value Inter Quartile Range (Q3-Q1) Q1-1.5 x (IQR) Q3+1.5 x (IQR)Boxplot * Smallest Data Value > Lower Fence Largest Data Value < Upper Fence Outlier (Min unless min is an outlier) (Max unless max is an outlier) mail: info@vivocorp.in
  7. 7. Box and Whisker Plots 80 x x 70 x 60 x Extend the the working out Cumulative frequency 50 x lines below the x axis 40 x 30 Median UQ 20 x LQ x Maximum valueMinimum value 10 x x 0 0 10 20 30 40 50 60 70 80 90 100 Weight (g) Draw the box plot like this mail: info@vivocorp.in
  8. 8. Available at :http://www.slideshare.net mail: info@vivocorp.in

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