c-charts monitor the number of nonconformities in an entire subgroup, made up of one or more units.
Note: When you generate a c-chart and select Capability, JMP launches the Poisson Fit in Distribution and gives a Poisson-specific capability analysis.
1.
Select Help > Sample Data Library and open Quality Control/Shirts.jmp.
2.
Select Analyze > Quality and Process > Control Chart > C.
3.
Select # Defects and click Process.
4.
Select Box and click Sample Label.
5.
Select Box Size and click Sample Size.
6.
Figure 3.23 c-chart

Help created on 7/12/2018