统计方法在控制产品质量中的应用

Function of Statistics Method in Controlling the Quality of Products

分析了抽样检验统计方法的优势 ,详细介绍了这种统计方法在实际中的应用过程 ,并利用“X—R”管理图控制产品质量 ,Pn 控制图判断不合格产品的分布规律 .应用实践证明 :该方法可明显提高经济效益 .

This paper analyses the advantages of satistics method in sample examination and introduces the practical usage of this statistics method in detail.By compounding X-R Administrative chart,it makes a quite effective use in controlling the products' quality and efficiently improving the economic.