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DMAIC DETECTIVE

SIX SIGMA CASE FILES

You've been hired as a Six Sigma consultant. Your clients—top companies like Tesla, Amazon, and Starbucks—are facing quality crises. Use the DMAIC methodology to crack each case and save the day.

📋 Your Mission

  • DEFINE — Choose the correct problem statement
  • MEASURE — Select appropriate metrics and data collection
  • ANALYZE — Build a fishbone diagram to identify root causes
  • IMPROVE — Propose the best solution
  • CONTROL — Design the monitoring system

Scoring: +10 points per correct answer | +3 streak bonus | +15 for perfect fishbone

CASE CLOSED

Final Score
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Accuracy
0%
Best Streak
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Cases Solved
0
A

Score
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Streak
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Case
1/3
CASE #2024-001

The Mystery of the Dead Batteries

🏭 TESLA GIGAFACTORY

Tesla's Gigafactory is experiencing a surge in battery cell failures. Customer complaints have increased 340% this quarter, and the production line is hemorrhaging money. The CEO wants answers—fast.

3.4%
Defect Rate
$2.1M
Monthly Cost
847
Complaints/Month
D
Define
Identify Problem
M
Measure
Collect Data
A
Analyze
Find Root Cause
I
Improve
Implement Fix
C
Control
Sustain Gains
DEFINE PHASE
Select the best problem statement
Which problem statement best defines the issue for this Six Sigma project?