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Six Sigma Study Guide

Study notes and guides for Six Sigma certification tests
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Six Sigma Study Guide Articles

Ted Hessing

(TSF #27) Lean Six Sigma Case Study: Reducing Hospital Room Turnaround Time

Posted by Ted Hessing

See how a real Lean Six Sigma hospital project reduced patient room turnaround time by 25%. Learn step-by-step how to apply DMAIC.

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Ted Hessing

The Six Fix # 026: How to Handle Difficult Stakeholders in Lean and Six Sigma Projects

Posted by Ted Hessing

Learn how to handle difficult stakeholders in Lean and Six Sigma projects using real-world tactics. Master the human side of change.

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Ted Hessing

The Six Fix #025: What Is the Null Hypothesis?

Posted by Ted Hessing

Learn what the null hypothesis really means in experiments. Clear examples and simple explanations. Your questons answered.

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Ted Hessing

The Six Fix #024: 7 Tips for Building Better GPTs (From Someone Still Learning)

Posted by Ted Hessing

These are lessons I’ve picked up while building my own GPTs in ChatGPT, informed by trial and error, conversations with peers, and a lot of debugging at 2 a.m.

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Ted Hessing

The Six Fix #023: The Brutal Truth Behind Lean Six Sigma Success

Posted by Ted Hessing

The Brutal Truth Behind Lean Six Sigma Success is that Lean, Six Sigma, and “Brutal Facts” Belong Together.

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Recent Newsletters

  • TSF #50: Can You Actually Run a Six Sigma Project? A Real-World Gut Check
  • TSF #49: Why Trust Might Be the Most Underrated Skill in Your Six Sigma Project
  • TSF #47: The Baseline Method: The Fastest Way to Find Out What You Actually Need to Study
  • TSF #46: ASQ, IASSC, or Villanova? How to Pick the Right Six Sigma Certification
  • TSF #55: Focused Exam Routines That Actually Save Time

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