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This part of ISO 3951 specifies an acceptance sampling system of single sampling plans for inspection by variables, indexed in terms of the Acceptance Quality Limit (AQL). This part of ISO 3951 is primarily designed for use under the following conditions: a) where the inspection procedure is to be applied to a continuing series of lots of discrete products all supplied by one producer using one production process. If there are different producers or production processes, apply this part of ISO 3951 to each one separately; b) where the quality characteristics of the items of product are measurable on a continuous scale; c) where the measurement error is negligible (i.e. with a standard deviation no more than 10 % of the corresponding process standard deviation); d) where production is stable (under statistical control) and the quality characteristics are distributed, at least to a close approximation, according to normal distributions; e) where, in the case of multiple quality characteristics, the characteristics are independent of one another, at least approximately; f) where a contract or standard defines an upper specification limit U, a lower specification limit L, or both on each of the quality characteristics.
Sampling procedures for inspection by variables - Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics
Provides guidance on the selection of appropriate statistical techniques that may be useful to an organization in developing, implementing, maintaining and improving a quality management system in compliance with SANS 9001; done by examining those requir
Guidance on statistical techniques for SANS 9001:2000
Concepts to quality management and statistics; concepts of statistical process control (SPC)
APPLICATION OF STATISTIC. ESTIMATION OF A MEDIAN.
Applications of statistics - Comparison of an average to a given value (known variance)
Applications of statistics - Comparison of the ratio of two variances - (two standard deviations) to a given value.
Applications of statistics - Estimation of an average - (unknown variance).
Applications of statistics - Estimation of the difference between two means (known variances)
Applications of statistics - Comparison of the difference of two means at a given value - (variances unknown, but equal).
Applications of statistics - Estimation and statistical tests relating to means and variances - General.
Applications of statistics - Estimation of a variance - (of a standard deviation).
Applications of statistics - Estimation of the ratio of two variances - (two standard deviations).
Applications of statistics - Estimation of an average - (known variance).
Applications of statistics - Estimation of the difference between two means - (variances unknown, but equal).
Applications of statistics - Comparison of the difference of two means at a given value - (known variances).
APPLICATIONS OF STATISTICS. COMPARISON OF PAIRED OBSERVATIONS.
APPLICATIONS OF STATISTICS. INTRODUCTION TO THE USE OF STATISTICAL TESTS. COMPARISON OF TWO SAMPLES.
APPLICATIONS OF STATISTICS. INTERPRETATION OF TEST RESULTS. ESTIMATE OF MEAN. CONFIDENCE INTERVAL.
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