DESIGNING A MULTIVARIATE EWMA CONTROL CHART 15 show the amount of degradation in arl that 1951 tained from the appropriate tables. References ns切 .S.E.(15)Double Integral Equation for 159.pp.530-549. 2Pp.351-365 Pm.20258 Cha Key Words:Avernge Run Length,Chi-Squared Con ContmlGhattHha tical Process Control. Vol.9.No.1,January 1997 Quality Technolog Reproduced with permission of the copyright owner.Further reproduction prohibited without permission. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission