GB/T 4889-2008Statistical interpretation of data -- Techniques of estimation and tests relating to means and variances of normal distribution (English PDF)

Foreword

This revised standard adopts the International Standard ISO 2854. 1976. This standard and ISO 2854. 1976 as compared to the main changes in the technical content to include.

--- The ISO carved in two chapters of the methods and examples to Article narration, easy to understand;

--- Description Table C in many other table, a large number of previously omitted the foregoing table the same repetitive description;

--- The normality test section covers omit;

--- Paired data to compare the contents omitted;

--- Structural re-arrangement, a method related to the back of each one illustrative example;

This standard replaces GB/T 4889-1985. This standard and GB/T 4889-1985 compared to changes in the technical content include.

--- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and write rules," the requirements of the standard format it has been revised;

--- Increased terminology, symbols and definitions;

--- The sample size to sample size;

--- Structural re-arrangement, a method related to the back of each one illustrative example;

The Standard Appendix A and Appendix B are normative.

Application of this standard by the National Standardization Technical Committee on statistical methods and focal points.

This standard was drafted. East China Normal University, China National Institute of Standardization, Beijing University, the Ministry of Railways.

1 Scope

Generally covered by this standard normal distribution.

This standard applies to the overall mean and variance estimation or testing.

2 Normative references

The following documents contain provisions which, through reference in this standard to become the standard terms. For dated references, all subsequent Amendments (not including errata content) or revised edition are not suitable for this standard. However, according to the study encourages the parties to the agreement are Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Statistical interpretation of normality test GB/T 4882-2002 data ISO 3534-1:2006 Statistics Vocabulary and symbols - Part 1. General statistical terms and terms used in probability ISO 3534-2:2006 Statistics Vocabulary and symbols - Part 2. Applied Statistics

3 Terms, definitions and symbols

ISO 3534-1:2006 and ISO 3534-2:2006 as well as to determine the terms and definitions of the following terms, definitions and symbols apply to this standard quasi. For ease of reference, certain terms are taken directly from the above criteria.