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2002 North Texas Inspection Performance
10
5
Subgroup
0
2.5
2.0
1.5
1.0
1
Mean=1.917
UCL=2.400
LCL=1.433
1.0
0.5
0.0
1
1
R=0.1818
UCL=0.5941
LCL=0
2002 I-MR chart - North TX Inspection
D
M
A
I
C
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