Objective: To estimate the confidence interval for paired sample median.
目的估计配对资料中位数可信区间。
The Geometric Mean works better than the median for reporting the best middle task time for sample sizes less than 25.
对于测试样本低于25以下时，几何平均值比中位数能更好的报告最佳任务完成时间中间值。
Under population follow normal distribution hypothesis, designing combine median-range adaptive control charts with variable sampling interval, variable sample size and variable control limit .
在假设总体服从正态分布的条件下，设计了抽样区间，样本容量和控制限都变化的全变化参数的中位值-极差联合控制图。
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