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这里要介绍的是一种统计试验方法,以本文一级因素对于评价集合的权重分配为例。先邀集压力容器管理人员、探伤人员等让其认真考虑焊缝质量、介质、管理水平,运行工况、操作人员素质、安全附件等因素对压力容器安全所起的作用,各自对每个因素报出一个权重分配,然后分别进行单因素统计,找出该因素数据中的最大值和最小值。按此进行适当的分组,算出分配的组距,计算数据落在各组中的频数、频率;最后根据频数分布确定该因素较为
Here to introduce is a statistical test method, with the first level of this paper, the weight of the evaluation set as an example. First invite pressure vessel managers, inspectors and other personnel to seriously consider the weld quality, media, management level, operating conditions, operator quality, safety accessories and other factors on the safety of pressure vessels play a role, each of the factors reported A weight distribution, and then single-factor statistics, find out the maximum and minimum of the factor data. According to the appropriate grouping, calculate the assigned group distance, calculate the frequency and frequency of the data falling in each group; finally, according to the frequency distribution, this factor is more