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ASTM E2334-03e1

Historical Revision

Standard Practice for Setting an Upper Confidence Bound for a Fraction or Number of Non-Conforming items, or a Rate of Occurrence for Non-Conformities, Using Attribute Data, When There is a Zero Response in the Sample

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1.1 This practice presents methodology for the setting of an upper confidence bound regarding a unknown fraction or quantity non-conforming, or a rate of occurrence for nonconformities, in cases where the method of attributes is used and there is a zero response in a sample. Three cases are considered.

1.1.1 The sample is selected from a process or a very large population of discrete items, and the number of non-conforming items in the sample is zero.

1.1.2 A sample of items is selected at random from a finite lot of discrete items, and the number of non-conforming items in the sample is zero.

1.1.3 The sample is a portion of a continuum (time, space, volume, area etc.) and the number of non-conformities in the sample is zero.

1.2 Allowance is made for misclassification error in this standard, but only when misclassification rates are well understood or known and can be approximated numerically.


SDO ASTM: ASTM International
Document Number E2334
Publication Date Oct. 1, 2003
Language en - English
Page Count 9
Revision Level 03e1
Supercedes
Committee E11.30
Publish Date Document Id Type View
April 1, 2013 E2334-09R13E02 Revision
April 1, 2013 E2334-09R13E01 Revision
Nov. 1, 2009 E2334-09 Revision
Oct. 15, 2008 E2334-08 Revision
Oct. 1, 2003 E2334-03E01 Revision
Oct. 1, 2003 E2334-03 Revision
Jan. 1, 2023 E2334-09R23 Reaffirmation
Sept. 1, 2018 E2334-09R18 Reaffirmation
April 1, 2013 E2334-09R13 Reaffirmation