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GBZ31233-2014 English PDF

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GBZ31233-2014: Implementation guide of random sampling for discrete items
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Basic data

Standard ID GB/Z 31233-2014 (GB/Z31233-2014)
Description (Translated English) Implementation guide of random sampling for discrete items
Sector / Industry National Standard
Classification of Chinese Standard A41
Classification of International Standard 03.120.30
Word Count Estimation 19,131
Date of Issue 9/30/2014
Date of Implementation 4/15/2015
Quoted Standard GB/T 3358.1-2009; GB/T 3358.2-2009; GB/T 10111-2008
Regulation (derived from) People's Republic of China Announcement of Newly Approved National Standards 2014 No. 22
Issuing agency(ies) National Health and Family Planning Commission
Summary This Standard specifies how the production characteristics and stored in accordance with the state of the product is suitable for the site selection tool to generate random numbers, as well as an appropriate random sampling method and related procedures.

GBZ31233-2014: Implementation guide of random sampling for discrete items

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Implementation guide of random sampling for discrete items ICS 03.120.30 A41 People's Republic of China national standardization of technical guidance documents Discrete individual products random sampling implementation guidelines 2014-09-30 released 2015-04-15 Implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 symbol 3 5 discrete individual products random sampling 3 Simple random sampling 4 7 isometric sampling 5 8 stratified sampling 5 Second order sampling 6 Appendix A (informative) simple random sampling method and program example 8 Appendix B (Informative) Example of equidistant sampling method 10 Appendix C (informative) Stratified random sampling method example 11 Appendix D (Informative) Second-order sampling example 12 Appendix E (Informative) Sampling style 14

Foreword

This instructional document has been drafted in accordance with the rules given in GB/T 1.1-2009. This Guidance Document is proposed and managed by the National Technical Committee for Standardization of Statistical Methods (SAC/TC21). This guideline is responsible for the drafting of technical documents. Jilin Province Quality and Technical Supervision. The guidance of technical documents to participate in the drafting unit. Jilin Province Quality Supervision and Management Association, Jilin Province, product quality supervision and Inspection Institute, Jilin Province Geographical Indication Products Protection Association, Dalian City Product Quality Supervision and Inspection Institute, FAW Car Co., Ltd., Hefei Teachers College. The main drafters of this guidance document are Li Ning, Wei Wei, Tian Guiying, Li Guijun, Zheng Shunli, Sun Ping, Yang Yuhong, Zhang Jingjuan, Hu Guozhi, Zeng Jie.

Introduction

This guidance document is based on GB/T 10111-2008 "The Generation of Random Numbers and Its Application in Product Quality Sampling and Testing Program ", for the administrative law enforcement, product quality supervision and spot checks, administrative licensing review, product inspection or merchandise trade process needs to be divided Individual products for random sampling and the development of the implementation guidelines. The guidance of technical documents in accordance with the characteristics of the product production and storage state provides how to choose the appropriate "on-site random number generator" Sampling methods and procedures, such as "simple random sampling", "isometric sampling", "stratified random sampling" and "second-order sampling", will help the sampling staff to better Understand and apply GB/T 10111-2008. Discrete individual products random sampling implementation guidelines

1 Scope

This guidance document gives how to select the appropriate field-generated random number tool according to the characteristics of production and the state of storage, As well as appropriate random sampling methods and related procedures. This guidance document is applicable to the sampling of discrete individual products.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 3358.1-2009 statistical vocabulary and symbols - Part 1. General statistical terms and terms used in probability Statistical terms and symbols - Part 2. Application statistics GB/T 10111-2008 Random number generation and its application in product quality sampling inspection

3 Terms and definitions

GB/T 3358.1-2009, GB/T 3358.2-2009 and GB/T 10111-2008 as defined by the following terms and definitions apply In this paper. 3.1 Discrete individual products discreteitem Easily distinguishable from each other, Batch products consist of a limited number of units of products. [GB/T 10111-2008, Definition 3.1.1] Examples of units of products that exist independently in the form of units, cases, cases, bags, bales, etc. 3.2 Sampling unit sampleunit Each section will be divided as a whole. Note 1. A cell can contain one or more individuals. Note 2. Sampling units may consist of discrete individuals or consist of a quantity of bulk material. [GB/T 3358.2-2009, Definition 1.2.14] 3.3 Random sampling randomsampling Taking n sampling units from the population to form samples, each possible combination of n sampling units has a specific probability sampling. [GB/T 3358.2-2009, Definition 1.3.5] Note. In this guidance document, random sampling, if not specified, refers to equal probability extraction. That is, from the total number of N individuals drawn from a Body, so that each individual is drawn to the possibility of equal extraction method. 3.4 Sampling inspection samplinginspection Tests taken from a number of unit products from the set of products under consideration. [GB/T 3358.2-2009, Definition 4.1.6]

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