Dhanushika, M.P.; Banneheka, B.M.S.G.; Herath, Keminda
(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2014-01-22)
Individual and Moving Range (I-MR) charts are generally used for process
monitoring where we cannot group observations into rational subgroups or
when it‟s more convenient to observe individual measurement rather than ...