Non – Parametric Control Charts Based On Median Ranked Set Sampling
In this paper, we study the average run length ( ARL ) performance of the two non – parametric control charts
(Mann-Whitney control chart (U – Chart) and Wilcoxon rank sum test control chart (W – Chart)).The data are generated from
normal distribution, uniform distribution, and Weibull distributions with the process mean shift in times of standard
deviation ( = 0.50, 1, 1.5, 2, 2.5, and 3). The results show that ARL of non – parametric control chart base on median ranked
set sampling (MRSS) has superior performance than the simple random sampling.
Index Terms— Average Run Length, Median Ranked Set Sampling, Non – Parametric Control Chart