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1 QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS QC 7 TOOLS

QC 7 Tools - ISOTHAI.COM

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Page 1: QC 7 Tools - ISOTHAI.COM

1

QC 7 TOOLSQC 7 TOOLSQC 7 TOOLSQC 7 TOOLSQC 7 TOOLSQC 7 TOOLSQC 7 TOOLSQC 7 TOOLS

Page 2: QC 7 Tools - ISOTHAI.COM

2

������������� 7 ���� ( QC 7 Tools)

1. ���������� (Check Sheet)

2. ����������� � (Pareto Chart)

5. �������ก��ก�'�(ก)*+� (Scatter Diagram)

3. 1� ��ก�� (Histogram)

4. �������ก5��6)� (Cause 8 Effect : Diagram)

6. �������=��=*� (Control Chart)

7. ก����+�ABC�D5���) (Stratification)

Page 3: QC 7 Tools - ISOTHAI.COM

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����������� ( ( ( (Check SheetCheck SheetCheck SheetCheck Sheet))))

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Page 4: QC 7 Tools - ISOTHAI.COM

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Page 5: QC 7 Tools - ISOTHAI.COM

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Page 6: QC 7 Tools - ISOTHAI.COM

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Page 7: QC 7 Tools - ISOTHAI.COM

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• �5���I�B�P*6�'�=GM�ก��MA5����������• ก��กD5���)'O�ก �+�(�+�ก���B�HNก• (�J��Iก���DI(�R�E�=BO)�ก��ก�H+�MO �ก���O(+����ก�H+��BC�• 'O�ก�+�ก���+��=+�R�E�MA5M�ก�����=��'RG• �5�����*6�)LO5HB�HIHIJก��กD5���)��U• ก+��MA5��+��������� ��5��ก=��HO)���กU�D5���)ก+��MA5���• �Iก��6�B�6�*��ก5LD��EJ�MR5�I6�'�H[������กDNC�

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Page 8: QC 7 Tools - ISOTHAI.COM

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(4��-�� ���6� ( ( ( (Pareto Chart)Pareto Chart)Pareto Chart)Pareto Chart)

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FingerHand

Arm LegHead

Others

56 37 12 10 8 344.4 29.4 9.5 7.9 6.3 2.4

44.4 73.8 83.3 91.3 97.6 100.0

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50

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CountPercentCum %

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Arm 12

Hand 37

Leg 10

Finger 56

Page 9: QC 7 Tools - ISOTHAI.COM

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• 6�'ก��O5�(ก��F�H+��)'ก��F�5�• ��ก�ก�ก�M�����BC� ( �ก� Y) �)'�ก������� ( �ก� X) ก��F���� �'�I�ก��O��5�()'R�E��6��G�\U��G (%) D��D5���)'��(�+H��O5��D���E�D������B�O5�(• =�����D���H+�ก��F'��I(�)Q�OB��ก��กL6R��5�( �ก\5�(�E�L6D���E� (ก��5�M�ก)*+� D5���)HIJ�6S� “ D5���)�EJ�K ” '�Q�L6L�5HIJ�Q��R�+�*OH5�(D���ก�M����������

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Page 10: QC 7 Tools - ISOTHAI.COM

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Page 11: QC 7 Tools - ISOTHAI.COM

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• กQ�R�O��[Iก���กU�D5���)�)'A+����)�HIJ'HQ�ก���กU�• ��ก��������ก���B�HNก• �Q�L6�กU�D5���)• �Q�D5���)���*6BO��I(�)Q�OB�• �DI(�����B����� �

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Page 12: QC 7 Tools - ISOTHAI.COM

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ก��) (Graph)(Graph)(Graph)(Graph)

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Page 13: QC 7 Tools - ISOTHAI.COM

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ก��)(<0� (Bar Chart)(Bar Chart)(Bar Chart)(Bar Chart)_ MA5��EJ��ID5���)��กก�+�R�E��H+�กB� 2 D5���) O(MA5ก���6�I(��HI(�HIJ�EC�HIJD��ก��F _ L�+�R��'�HIJ'MA5O���� �5�M��'('(�� ��+�R��'Q�R�B�D5���)M���+)'A+����)�

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Wife’s birth day

Page 14: QC 7 Tools - ISOTHAI.COM

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ก��)��,� ( ( ( (Line Chart)Line Chart)Line Chart)Line Chart)

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Page 15: QC 7 Tools - ISOTHAI.COM

15

Electricity18%

Water4%

Food56%

Drink22%

Electricity Water Food Drink

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Page 16: QC 7 Tools - ISOTHAI.COM

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Page 17: QC 7 Tools - ISOTHAI.COM

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Page 18: QC 7 Tools - ISOTHAI.COM

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Page 19: QC 7 Tools - ISOTHAI.COM

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Page 20: QC 7 Tools - ISOTHAI.COM

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Page 21: QC 7 Tools - ISOTHAI.COM

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Page 22: QC 7 Tools - ISOTHAI.COM

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Page 23: QC 7 Tools - ISOTHAI.COM

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Page 24: QC 7 Tools - ISOTHAI.COM

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Page 25: QC 7 Tools - ISOTHAI.COM

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Page 26: QC 7 Tools - ISOTHAI.COM

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=+�B�6�'�H[�oRB��B�[G (=+� r) =E� =+�HIJMA5�+���กOBA�ID��=���B��B�[GD���B��6� X �)' Y �+��I=���B��B�[GกB�M�H�^H��MO_ =+� r �I=+��'R�+�� -1 กB� 1 P5�=+� r �D5�Mก)5 0 �O��+�=+�RB��B�[G�'R�+���B��6��I�5�(_ =+� r = 1 =+�RB��B�[G�6S� +_ =+� r = -1 =+�RB��B�[G�6S� -(L�+�ID5�กQ�R�OD��=+� r �6S�����q����+��� DNC��(�+กB�=���Q�=BY�)'O*)(����D����5HIJกQ�)B� N̂กW�)กQ�R�OMR5 r = B�6�'�H[�oRB��B�[GD���J��B��(+��

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Page 27: QC 7 Tools - ISOTHAI.COM

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(4��-��ก��ก�$��/ก.0� ( ( ( (Scatter Diagram) Scatter Diagram) Scatter Diagram) Scatter Diagram)

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Page 28: QC 7 Tools - ISOTHAI.COM

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• �������ก��ก�'�(ก)*+�HIJ�IRB��B�[G���)�

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Page 29: QC 7 Tools - ISOTHAI.COM

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• �������ก��ก�'�(ก)*+�HIJL�+�IRB��B�[G

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Page 30: QC 7 Tools - ISOTHAI.COM

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12.8 13.8 14.8 15.8 16.8

95% Confidence Interval for Mu

14.7 14.8 14.9 15.0 15.1 15.2 15.3 15.4 15.5

95% Confidence Interval for Median

Variable: Length (mm)

A-Squared:P-Value:

MeanStDevVarianceSkewnessKurtosisN

Minimum1st QuartileMedian3rd QuartileMaximum

14.7536

0.7001

14.8073

0.4460.264

15.0818 0.8791

0.772799-7.6E-011.13542

30

12.746414.552315.146415.681616.6746

15.4101

1.1818

15.4818

Anderson-Darling Normality Test

95% Confidence Interval for Mu

95% Confidence Interval for Sigma

95% Confidence Interval for Median

Descriptive Statistics

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Length (mm)15.7308 15.0756 14.5324

15.0556 16.6746 14.7458

15.6857 14.3452 15.162

14.6842 14.4707 12.7464

14.5589 15.1495 15.4389

13.0559 16.0744 16.4569

15.2522 14.2411 15.6802

15.1254 15.0145 13.912

15.6353 15.7838 16.1992

15.1433 15.3298 15.4945

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