Hand and Foot Modifier FA -F9 and T1 - T9. E1 - E4, FA - F9, TA - T9 Level II Modifier. E1-E4 Anatomic modifiers which are associated with the eyelid. FA, F1- F9 Anatomic modifiers which are associated with the fingers. TA, T1- T9 Anatomic modifiers which are associated with the toes.
X-bar and R Control Chart Issues and Resolution. X-bar and R control charts are used in quality control to identify when special cause or out-of-control conditions occur in time-series data so that timely corrective actions can be taken to resolve problems.
Calculate the average (X-Bar) and range (R) for each subgroup. X-Bar and R Charts 1 Â© 2011 MoreSteam.com LLC. All rights reserved. NOTE: It has been estimated that 98% of all processes can be effectively represented by using either the XmR charts or X-Bar & R charts. (Donald Wheeler) X-Bar and Range (or S) charts are always constructed and viewed as a pair.