GB/T 4882-2001Statistical interpretation of data -- Normality tests (English PDF)
数据的统计处理和解释 正态性检验
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Issued by
State Quality and Technical Supervision
Level / Type
National · Recommended
Issue date
March 5, 2001
Implementation date
September 1, 2001
Scope
GB/T 4882-2001 is the English-translated version of 数据的统计处理和解释 正态性检验.
GB/T 4882-2001 — This standard specifies: a guide, observations on the assumption of mutual independence, determine whether the distribution is normal whether hypothesis is rejected methods and testing.
When the normal distribution of the observed values ??are in doubt, using normal deviate test is useful for -, even necessary -. T-test to check the use of a random sample of observations means a departure from a given the theoretical value, This is the case a Lie.
However, robust methods (ie, the observed value true when the probability distribution is not normal, conclusions only slightly changes) under the circumstances, deviation from normal testing is not necessary -.
It is not strictly necessary to use such a test, while statistical methods based on the assumption of normality involved. Observations it may be completely normal in doubt -, may be theoretical (such as physical -) constitutes a reason for this assumption, may also be affected by prior information based on this assumption.
The standard deviation from the normal distribution is for non-packet inspection the raw data, rather than packet data. Test does not apply to censored data. The standard deviation from the normal distribution test can be applied to the observed value, may also be applied to them function, such as logarithm, square root.
When the sample size is less than 8, deviate normal distribution test results are very poor -.
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Document preview — GB/T 4882-2001
National Standard of the People's Republic of China
- ICS
- 03.120.30
- Classification
- A 41
- Replacing
- GB/T 4882-1985
Issued by: State Quality and Technical Supervision
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This standard specifies: a guide, observations on the assumption of mutual independence, determine whether the distribution is normal whether hypothesis is rejected methods and testing. When the normal distribution of the observed values ??are in doubt, using normal deviate test is useful for -, even necessary -. T-test to check the use of a random sample of observations means a departure from a given the theoretical value, This is the case a Lie. However, robust methods (ie, the observed value true when the probability distribution is not normal, conclusions only slightly changes) under the circumstances, deviation from normal testing is not necessary -. It is not strictly necessary to use such a test, while statistical methods based on the assumption of normality involved. Observations it may be completely normal in doubt -, may be theoretical (such as physical -) constitutes a reason for this assumption, may also be affected by prior information based on this assumption. The standard deviation from the normal distribution is for non-packet inspection the raw data, rather than packet data. Test does not apply to censored data. The standard deviation from the normal distribution test can be applied to the observed value, may also be applied to them function, such as logarithm, square root. When the sample size is less than 8, deviate normal distribution test results are very poor -. Therefore, the standard sample size limit is at least 8.
Document data
International classification (ICS): 03.120.30.
Chinese classification (CCS): A41.
Estimated length of the Chinese original: 33,375 words.
Adopted international standard: ISO 5479-1997; IDT.
Supersedes the earlier edition GB/T 4882-1985.
Standards quoted by this document
GB/T 3358.1-1993
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.
Referenced standards
Cited by
- HJ 61-2021Technical specification for radiation environmental monitoring
- RB/T 038-2020Guidelines for Quality Control of Food Microbiological Test Results
- GB/T 33260.3-2018Capability of detection -- Part 3: Methodology for determination of the critical value for the response variable when no calibration data are used
- GB/T 33260.4-2018Capability of detection -- Part 4: Methodology for comparing the minimum detectable value with a given value
- GB/T 17215.811-2017Electricity metering equipment ((a.c.) -- Acceptance inspection -- Part 11: General acceptance inspection methods
- HJ 173-2017Technical specifications for development of environmental reference materials
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