今天,质量越来越成为企业提高生存与竞争能力的重要方面,而有效地推行质量管理是使企业经济、高效地出产高质量产品的重要途径。统计方法通过对数据的整理、解析,客观定量地分析产品形成过程中的质量问题,谋求以较少的资源消耗,取得质量的提高,无疑它是质量管理的十分有用的工具。休哈特首先将统计方法用于制造过程 Today, quality is increasingly becoming an important aspect of companies’ ability to improve their survival and competitiveness, and effective implementation of quality management is an important way for companies to produce high-quality products economically and efficiently. The statistical method analyzes and analyzes the data objectively and quantitatively to analyze the quality problems in the product formation process. It seeks to reduce the consumption of resources and improve the quality of the products. It is undoubtedly a very useful tool for quality management. Shehart first used statistical methods for the manufacturing process