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SPC Control Chart
SPC X̄-R Control Chart
Enter measurement data to generate X̄-R chart and calculate process capability
Data Input
Measurements (one per line, in subgroup order)
25.02,25.01,25.03,24.99,25.00 25.00,24.98,25.02,25.01,25.00 24.99,25.00,25.01,25.02,25.00 25.01,25.03,24.99,25.00,25.01 24.98,25.00,25.02,25.01,25.00 25.00,25.01,24.99,25.02,25.00 25.02,25.00,24.98,25.01,25.00 25.01,25.00,25.03,24.99,25.01 24.99,25.02,25.00,25.01,25.00 25.00,24.99,25.01,25.02,25.00 25.03,25.00,24.98,25.01,25.01 25.00,25.02,25.01,24.99,25.00 24.98,25.01,25.00,25.02,25.01 25.01,25.00,25.00,24.99,25.02 25.00,25.01,25.02,25.00,24.98 25.02,24.99,25.01,25.00,25.01 25.00,25.00,24.99,25.02,25.01 25.01,25.02,25.00,24.98,25.01 24.99,25.01,25.01,25.00,25.02 25.00,25.00,25.02,25.01,24.99
Subgroup Size (n)
2
3
4
5
6
7
8
9
10
USL
LSL
Analyze
Process Capability
Cp
-
Cpk
-
Pp
-
Ppk
-
X̿
-
σ̂
-
X̄ Chart
Subgroup Mean
CL (X̿)
UCL/LCL
R Chart
Subgroup Range
CL (R̄)
UCL/LCL
Subgroup Summary
#
Mean (X̄)
Range (R)
Status