1. STATISTICAL QUALITY
CONTROL
Dr. Rana Singh
Professor in Management
www.ranasingh.org
8800049885
singh_rana@yahoo.com

3. Variations
• Chance Variations
• Assignable Variations

5. Control Charts
• Statistical Charts used for controlling
manufacturing processes is called Control chart.
• Companies always strive to maintain the quality
of the products and services within the
parameters specified in the chart.
• Tool to enable the managers whether the
production processes are in proper order.
• Control chart is indispensable instrument for
specification, production and inspection.

6. Control Chart

7. Control Limits