Sharif University of TechnologyScientia Iranica1026-309825220180401On Auxiliary Information Based Improved EWMA Median Control Charts954982443210.24200/sci.2017.4432ENShahid HussainSchool of Mathematical Sciences, Dalian University of Technology Dalian, 116024, P. R. ChinaLixin SongSchool of Mathematical Sciences, Dalian University of Technology Dalian, 116024, P. R. ChinaShabbir AhmadDepartment of Mathematics, COMSATS Institute of Information Technology, Wah Cantt 47040, PakistanMuhammad RiazDepartment of Mathematics and Statistics, King Fahad University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia20160123http://scientiairanica.sharif.edu/article_4432_4a55819064bd7dbd64f77d53b29954a5.pdf