Estimation from Quantiles in Destructive Testing
破坏性测试中利用分位数估计参数
SUMMARY The estimation of mean and standard deviation from the values of two quantiles dividing the specimens into three groups has, by previous authors, been made the basis of a quality control system of gauging specimens at two levels. When a specimen may be gauged once only, single gauging, different specimens must be gauged at each level, and the efficiency of the method is reduced. For a variate normally distributed with mean, μ, and standard deviation, σ, the…