Journal of The Japanese Society for Quality Control

Online ISSN : 2432-1044
Print ISSN : 0386-8230

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Volume 21, Issue 1

Displaying 1-12 of 12 articles from this issue

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Message

Message from President

Youji AKAO

Article type: Message
1991 Volume 21 Issue 1 Pages 3-
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_3

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Message from President

Masao NEMOTO

Article type: Message
1991 Volume 21 Issue 1 Pages 4-
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_4

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Contributed Paper

Improved Interval Estimation for the Scale Parameter of Exponential Distribution with an Unknown Location-scale Parameter

Yasushi NAGATA

Article type: Contributed Paper
1991 Volume 21 Issue 1 Pages 5-10
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_5

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Let x(1), x(2), …, x(n) be the order statistics of a sample of size n from the exponential distribution with an unknown location-scale parameter (μ,σ). It is shown that usual confidence intervals for σ based on the only statistic Σn__<i=1>(x(i)-x(1)) can be improved by using the statistic x(1). Further the degree of the improvement is computed numerically.

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Features

Education of Statistical Methods for Quality Control

Hitoshi KUME

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Article
1991 Volume 21 Issue 1 Pages 11-17
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_11

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The Practice of Statistical Quality Control Education at Toyota -For Growing Human Resource and Practical Effort-

Kakuro AMASAKA, Hidekazu AZUMA

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method
1991 Volume 21 Issue 1 Pages 18-25
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_18

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SQC Training Programs in Komatsu Ltd.

Masuo SUYAMA

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method
1991 Volume 21 Issue 1 Pages 26-34
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_26

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SQC Method Training at TDK

Yukio KISHI, Noboru HONDA, Tadayoshi YAMAZAKI

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method
1991 Volume 21 Issue 1 Pages 35-41
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_35

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QC Education in TOTO Ltd.

Toshinobu TERAO

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method 　
1991 Volume 21 Issue 1 Pages 42-47
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_42

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Education of Statistical Methods in Science University of Tokyo

Toshiro HAGA

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method 　
1991 Volume 21 Issue 1 Pages 48-53
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_48

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Education of Statistical Methods in University and Applications of Computers-The Education System in Nagoya Commerce and Business Administration

Noriaki KANDA

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: Case Method 　
1991 Volume 21 Issue 1 Pages 54-60
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_54

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Inventive Teaching Methods for SQC

Shinya NAGASAWA, Manabu IWASAKI, Yasushi NAGATA

Article type: Features 〔Education of Statistical Methods for Quality Control〕
Subject area: QC Salon
1991 Volume 21 Issue 1 Pages 61-63
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_61

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Case Method

Derivation of Statistical Equation for Fuel Consumption in S. I. Engines

Toshifumi TAKAOKA, Kakuro AMASAKA

Article type: Case Method
1991 Volume 21 Issue 1 Pages 64-69
Published: January 15, 1991
Released on J-STAGE: February 22, 2019

DOIhttps://doi.org/10.20684/quality.21.1_64

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