Variable Charts Flashcards
1
Q
Ucl for R
A
D4 x R bar
2
Q
LCL for range
A
D3 x r bar
3
Q
UCLx
A
Double x bar + (A2 x R bar)
4
Q
LCLx
A
Double x bar - ( A2 x R bar)
5
Q
R bar and double x bar equations
A
R bar = sum of range / number of samples
Double x bar = sum of avg measurements / number of samples