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1. Individual value control chart
2. Moving range control chart
Control charts: Calculation of control limits
RAX
d
R
X X LCLX X . 3 3 4
2
-  -  -  
X Target line Center  
RAX
d
R
X X UCL X X . 3 3 4
2
      
RD
d
R
d R R LCL R R 3
2
3 3 3   -  -  
R Target line Center  
RD
d
R
d R R UCL R R 4
2
3 3 3       
 d2 and A4 are constants
(see tables)
 d3, D3,and D4 are
constants (see tables)
ANALYZE
03/10/17
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