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ISO 3301:1975

Statistical interpretation of data — Comparison of two means in the case of paired observations

Aug 1, 1975

General information

90.20     Jul 15, 2026

ISO

ISO/TC 69

International Standard

03.120.30  

French   English  

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Scope

A method is specified for comparing the mean of a population of differences with zero or any other preassigned value. It may be applied to establish a difference between two treatments, where "treatment" should be understood in a wide sense, e.g. as a test method, measuring instrument or laboratory involved, and is applicable under the conditions that the series of differences can be considered as a series of independent random items and the distribution of the differences is normal or approximately normal. If the distribution deviates from the normal, it remains valid provided the sample size is sufficiently large (100 and more).

Life cycle

NOW

PUBLISHED
ISO 3301:1975
90.20 Standard under periodical review
Jul 15, 2026

REVISED BY

ABANDON
ISO/WD 3301

ABANDON
ISO/DIS 16269-5

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