Open Attribute Data - C Chart Defects.xlsx.
C Charts (for Defects) assume a fixed subgroup size.
Select SigmaXL > Control Charts > Attribute Charts >
C. Ensure that the entire data table is selected. If
not, check Use Entire Data Table. Click Next.
Select Defects, click Numeric Data Variable (Y) >>. Check
Tests for Special Causes.
Click OK. The resulting
C-Chart is shown:
This is a stable process, with no tests for special causes
flagged.
