X Chart Formula. X-Bar ഥX and S Chart Formula. Conforms with ANSIASQC B1 B2 B3 1996.
PsomH h 168 - psomWTBF - 78 - psomW 265 2 oppBA -265 30 - 49. X-bar control limits are based on either range or sigma depending on which chart it is paired with. SERIESseries namex valuesy valuesplot order.
Some authors prefer to write this x-bar chart formula as.
Where S-bar is the Average Sigma. UCL X-bar X-bar-bar A2 x R-bar Plot the Upper Control Limit on the X-bar chart. SERIESSheet1F2Sheet1E3E8Sheet1F3F81 The arguments are identified as follows. The average of the Moving Ranges calculated from the adjacent data values in the baseline chart data.
