假设检验是统计技术较常用的一种分析测定结果进而推断化验室测定的方法、人员、实验室是否存在系统差异的技术。在质量管理中,假设检验具有以小概率事件来推断当工艺方法、原材料、过程参数改变时是否引起总体发生变化的常用方法。本文就某公司的子实验室与总部实验室每月的内外检结果(2004年1~2月)举例进行阐述。 Hypothesis testing is a technique commonly used in statistical techniques to analyze and determine the results of in-laboratory assays, and to determine whether there are systematic differences between personnel and laboratories. In quality management, it is assumed that the test has the common method of inferring, with a small probability event, whether the process, raw materials, process parameters have changed as a whole, or not, as a whole. In this paper, a company’s sub-laboratories and laboratory laboratories monthly internal and external inspection results (January-February 2004) as an example to illustrate.