Defining The Acceptable Range Of Variation Acceptable Upper Limit Acceptable Standard Range of Variation 0 Acceptable Lower Limit 计l 什2 t计3 计4 t计5 Time Period(t) ©Prentice Hall,2002 18-14Defining The Acceptable Range Of Variation Acceptable Upper Limit Standard Acceptable Lower Limit Measurement of Performance Acceptable Range of Variation t t+1 t+2 t+3 t+4 t+5 Time Period (t) © Prentice Hall, 2002 18-14