Critical Thinking Activity - SPC in Review

The statistical process control (SPC) is a statistical method of monitoring standards, taking measurements, and taking corrective action as products or services are being produced. Using environmental factors and the five M's--machines used, materials, methods of instruction, measurements taken, and manpower--how would these affect processes in the following areas?

1. A Hardware store
2. An Emergency room
3. Accounting firm
4. Car dealership