出口绸缎总体质量异常的判定

Judgement of Overall Quality Abnormality of Export Silks

与现行百分比抽样法比较,出口绸缎计数抽样法既能减少对批质量的错判,又能增加对总体质量异常性判断的准确性。文章分析了百分比抽样法的缺陷,介绍计数抽样法采用总体质量水平AQL值判断总体统计质量正确与否的方法。

In comparison with the current percentage sampling, the numeration sampling of export silks reduces the chances of misjudgement of lot quality, but enhances that of correct judgement of overall quality abnormality. The paper discusses the disadvantages of percentage sampling, as well as the process of numeration sampling, in which an overall quality level, i. e. AQL value is applied to assessing the correctness of overall statistical quality.