摘要
采用样本的变异系数L=s/(?)作为统计量来检验正态母体N(μ,σ~2),(μ>0)的相对散布度σ/μ。文中推导了L的分布密度,讨论了1/L的数学期望和渐近性质。在这基础上最后给出了在给定上规格限条件下,对变异系数进行一次抽样的抽检方案。
It is shown the use of sample variation coefficient L = s/ x as a sampling scheme to inspect the variation coefficient σ/μ of normal population N (μ , σ2), (μ>0). A derivation of the distribution density of L , and a discussion of the expectation of 1/L and its approximate property are also included . A single sampling inspection plan, having desired operating characteristics by variables , for variation coefficient is given (with up-sided limit specified).
出处
《北京理工大学学报》
EI
CAS
CSCD
1990年第2期4-9,共6页
Transactions of Beijing Institute of Technology
关键词
抽样理论
变异系数
抽检方案
sampling theory , sampling /variation coefficient , up -sided limit specified , sampling inspection plan , operating characteristics function .
