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The Bean Machine for Windows

A complete toolkit for teaching and understanding variation.

Includes the following:

The Bean Machine or Quincunx - used for:

  • Explain Basic Variation

  • Regression to the Mean
  • Dealing with variation and making decisions
  • Over compensation or adjustment
  • Process Control
  • Specification vs. Control Limits 
  • Dealing with measurement variation
  • Effects of sorting
  • Explaining Standard Deviations
  • And many other concepts
The Bead Box or Deming Red Bead Exercise
  • Dealing with defectives "decision making"
  • Demonstration of the Deming Red Bead
  • P-Charts and U-Charts
  • Effect of changing sample sizes
  • Constant vs. variable sample sizes
  • Effect of the underlying distribution

 

 

The Chip Box or Shewhart Bowl used for:
  • Working with count data
  • Constant vs. variable sample sizes
  • Effect of the underlying distribution
  • The limitations of using C-Charts
  • Effect of changing sample sizes
  • Comparing C-Charts to Xmr Charts

 

 

Funnel or Deming's Random Walk - compare:
  • No Adjustment
  • Adjust with memory
  • Adjust no memory
  • Random Walk

 

 

 

The Stat Game is a computer simulation designed to be used in a classroom where students can run the simulation, collect data and make process corrections.

Multiple simulations can be running at the same time so different groups each have their own process.