用控制图分析交通死亡人数的实例
发布时间：2018-11-11 11:28
【摘要】：正控制图自上世纪20年代发明以来,广泛用于生产过程控制.在先进国家,也逐渐将控制图用于服务业.按ISO9000质量体系标准族观点,“一切工作都是通过过程完成的”.应用控制图来分析、控制和改进服务过程,也是题中应有之意.美国一些专家,干脆称控制图为“过程行为图”.美国田纳西州的报纸,根据安全部门提供的数据,发布了“交通死亡人数连续三年直线下降……”的头条新闻.但国际著名的统计学家、美国“质量”杂志的专栏作家维勒先生,却根据新闻中过去25年的每年交通死亡人数(见表1),作出了自己的分析和质疑.“数据表示着高速公路安全的任何实质性改变吗?”,维勒的作法是“把这些数据放到过程行为图(即控制图)上”.这
[Abstract]:Since its invention in 1920s, the positive control chart has been widely used in production process control. In advanced countries, control charts are also increasingly being used in services. According to the ISO9000 quality system Standard Family, "all work is done through the process". Application of control chart to analyze, control and improve the service process, is also the meaning of the problem. Some experts in the United States simply call control charts "process behavior diagrams." The Tennessee newspaper, according to data from the security services, published "the death toll from traffic has plummeted for three years in a row." In the headlines. But Mr. Wheeler, an international statistician and columnist for quality magazine, makes his own analysis and questions based on the number of traffic deaths in the news for the past 25 years (see table 1). "does the data represent any material change in highway safety?" Wheeler's approach is to "put the data on the process behavior diagram (control chart)." this
【作者单位】： 上海思科统计质量咨询服务有限公司
【分类号】：D631.5
[Abstract]:Since its invention in 1920s, the positive control chart has been widely used in production process control. In advanced countries, control charts are also increasingly being used in services. According to the ISO9000 quality system Standard Family, "all work is done through the process". Application of control chart to analyze, control and improve the service process, is also the meaning of the problem. Some experts in the United States simply call control charts "process behavior diagrams." The Tennessee newspaper, according to data from the security services, published "the death toll from traffic has plummeted for three years in a row." In the headlines. But Mr. Wheeler, an international statistician and columnist for quality magazine, makes his own analysis and questions based on the number of traffic deaths in the news for the past 25 years (see table 1). "does the data represent any material change in highway safety?" Wheeler's approach is to "put the data on the process behavior diagram (control chart)." this
【作者单位】： 上海思科统计质量咨询服务有限公司
【分类号】：D631.5
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