process capability

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Process Capability - SigmaXL ® Version 6.1 Process Capability (Normal Data) Capability Combination Report Process Capability for Non-normal Data Automatic Best Fit Box-Cox Transformation

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An introduction to SigmaXL's Process Capability tools. Established in 1998, SigmaXL Inc. is a leading provider of user friendly Excel Add-ins for Lean Six Sigma graphical and statistical tools and Monte Carlo simulation. SigmaXL® customers include market leaders like Agilent, Diebold, FedEx, Microsoft, Motorola and Shell. SigmaXL® software is also used by numerous colleges, universities and government agencies. Our flagship product, SigmaXL®, was designed from the ground up to be a cost-effective, powerful, but easy to use tool that enables users to measure, analyze, improve and control their service, transactional, and manufacturing processes. As an add-in to the already familiar Microsoft Excel, SigmaXL® is ideal for Lean Six Sigma training and application, or use in a college statistics course.  DiscoverSim™ enables you to quantify your risk through Monte Carlo simulation and minimize your risk with global optimization. Business decisions are often based on assumptions with a single point value estimate or an average, resulting in unexpected outcomes. DiscoverSim™ allows you to model the uncertainty in your inputs so that you know what to expect in your outputs.

TRANSCRIPT

Page 1: Process capability

Process Capability -

SigmaXL® Version 6.1

Process Capability (Normal Data)

Capability Combination Report

Process Capability for Non-normal Data

Automatic Best Fit

Box-Cox Transformation

Page 2: Process capability

Process Capability

(Normal Data)

Process Capability/Sigma Level Templates

Multiple Histograms and Process Capability

Capability Combination Report for Individuals/Subgroups:

Histogram

Capability Report (Cp, Cpk, Pp, Ppk, Cpm, ppm, %)

Normal Probability Plot

Anderson-Darling Normality Test

Control Charts

Back to Index

Page 3: Process capability

Process Capability:

Capability Combination

Report LSL = -10 USL = 10Target = 0

0

10

20

30

40

50

60

70

80

90

-11.9

-10.3

-8.6

-7.0

-5.4

-3.8

-2.1

-0.5

1.1

2.7

4.4

6.0

7.6

9.2

10.9

12.5

14.1

15.7

17.4

19.0

20.6

22.2

23.9

25.5

Delivery Time Deviation

-4

-3

-2

-1

0

1

2

3

4

-23

-13 -3 7

17

27

Delivery Time Deviation

NS

CO

RE

Mean CL: 6.00

-15.60

27.61

-17.66

-12.66

-7.66

-2.66

2.34

7.34

12.34

17.34

22.34

27.34

1 21 41 61 81 101

121

141

161

181

201

221

241

261

281

301

321

341

361

381

401

421

441

461

481

501

521

541

561

581

601

621

641

661

681

701

721

Ind

ivid

uals

- D

eli

very

Tim

e D

evia

tio

n

8.12

0.00

26.54

-1.72

3.28

8.28

13.28

18.28

23.28

28.28

33.28

1 21 41 61 81 101

121

141

161

181

201

221

241

261

281

301

321

341

361

381

401

421

441

461

481

501

521

541

561

581

601

621

641

661

681

701

721

MR

- D

eli

very

Tim

e D

evia

tio

n

Back to Index

Page 4: Process capability

Process Capability for

Nonnormal Data

Box-Cox Transformation (includes an automatic threshold option so that data with negative values can be transformed)

Johnson Transformation

Distributions supported: Half-Normal

Lognormal (2 & 3 parameter)

Exponential (1 & 2 parameter)

Weibull (2 & 3 parameter)

Beta (2 & 4 parameter)

Gamma (2 & 3 parameter)

Logistic

Loglogistic (2 & 3 parameter)

Largest Extreme Value

Smallest Extreme Value

Back to Index

Page 5: Process capability

Process Capability for

Nonnormal Data

Automatic Best Fit based on AD p-value

Nonnormal Process Capability Indices:

Z-Score (Cp, Cpk, Pp, Ppk)

Percentile (ISO) Method (Pp, Ppk)

Distribution Fitting Report

All valid distributions and transformations reported

with histograms, curve fit and probability plots

Sorted by AD p-value

Back to Index

Page 6: Process capability

Distribution options displayed visually

Process Capability for

Nonnormal Data

Back to Index

Page 7: Process capability

Nonnormal Process Capability:

Automatic Best Fit

LSL = 3.5

0

2

4

6

8

10

12

14

16

1.4

5

1.7

2

1.9

9

2.2

6

2.5

4

2.8

1

3.0

8

3.3

5

3.6

2

3.9

0

4.1

7

4.4

4

4.7

1

4.9

8

5.2

6

Overall Satisfaction

3.885

1.548

5.136

1.500

2.000

2.500

3.000

3.500

4.000

4.500

5.000

5.500

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99

Ind

ivid

uals

: O

vera

ll S

ati

sfa

cti

on

(Perc

en

tile

Co

ntr

ol

Lim

its)

Back to Index

Page 8: Process capability

Process Capability:

Box-Cox Power

Transformation

Normality Test is

automatically applied

to transformed data!

Back to Index