Red Bead and Related Exercises

Virtual online versions of several well-known exercises to help understand key concepts of natural versus special cause variation, statistical process control, process tampering, and experimental design

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Presentation

Deming's Red Beads

- Existence and types of variation (natural, special)
- Statistical process coated charts

Dice Flow Exercise

- Consequence of variation on process performance
- Value of reducing variation

Nelson's Funnel

- Consequence of process tampering
- Reacting to natural variation

Box's Catapult

- Planned experiments to reduce variation
- Experimental design