Manzoor, Zainab; Manzoor, Zainab
(Department of Statistics, COMSATS University Lahore.Department of Statistics, COMSATS University Lahore., 2021-05-28)
Usually, two different EWMA charts are used to screen the mechanism average and dispersion.
Chen and Xie 2001 was the first to introduce the idea to screen both mean and variance
simultaneously, with a single statistic ...