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计量序贯抽样方案与计数抽样及计量一次、二次抽样相比存在着明显的优点.对同样的检验要求,计量序贯抽样所需的平均抽样量最小.本文建议对服从正态分布的固体发动机性能参数采用计量序贯抽样方案进行批生产验收.文中给出了确定计量序贯方案的公式及实例.
There is obvious merit in comparing sequential sampling plan with counting sampling and measuring once and twice sampling.For the same testing requirement, the average sampling quantity required for sampling sequential sampling is the minimum.This paper suggests that for samples subject to normal distribution The performance parameters of the engine are measured and confirmed by batch sampling plan.The formulas and examples are given to determine the sequential measurement scheme.