How this is calculated

The methods behind Cloud QC’s charts and statistics. Under each chart in the app, How this is calculated shows the same page with that chart’s own numbers.

• Shewhart (SQC) control lines
• Nelson 8 rules
• CUSUM
• EWMA
• Z-Score
• MAD control lines
• RD statistics
• RD Rolling Median
• Thompson-Howarth