ASTM-E178 › Historical Revision Information
Standard Practice for Dealing With Outlying Observations
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This practice covers outlying observations in samples and how to test the statistical significance of outliers. The procedures in this practice were developed primarily to apply to the simplest kind of experimental data, that is, replicate measurements of some property of a given material or observations in a supposedly random sample.
This practice covers alternatives that should be considered in dealing with an outlier. An outlying observation might be the result of gross deviation from prescribed experimental procedure or an error in calculating or recording the numerical value.
Scope
1.1 This practice covers outlying observations in samples and how to test the statistical significance of outliers.
1.2 The system of units for this standard is not specified. Dimensional quantities in the standard are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
Keywords
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03.120.30 (Application of statistical methods)
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Document Number
ASTM-E178-16a
Revision Level
2016A EDITION
Status
Superseded
Modification Type
Editorial Review Board change
Publication Date
Sept. 15, 2016
Document Type
Practice
Page Count
11 pages
Committee Number
E11.10