Lean Six Sigma Yellow Belt Certification Define Phase Deliverables 5 — Questions and Answers
Question 1: Which communication element of the Define phase ensures that key stakeholders remain informed and supportive throughout the project?
- Process capability index
- Communication plan (Correct answer)
- Control chart
- Fishbone diagram
Correct answer: Communication plan
A communication plan specifies who needs what information, when, and how to keep stakeholders engaged and aligned.
Question 2: A Kano model used in VOC analysis helps teams distinguish between:
- Common cause and special cause variation
- Must-be, performance, and delighter customer requirements (Correct answer)
- Value-added and non-value-added process steps
- Controlled and uncontrolled process factors
Correct answer: Must-be, performance, and delighter customer requirements
The Kano model categorizes customer needs into basic (must-be), performance, and excitement (delighter) requirements.
Question 3: The project charter's 'project scope' section typically includes which of the following?
- Root cause hypotheses and statistical tests
- Start and stop points of the process being improved (Correct answer)
- Final solutions and implementation costs
- Control chart parameters and sampling frequency
Correct answer: Start and stop points of the process being improved
The scope section identifies the process start and end points to define the boundaries of the improvement effort.
Question 4: During Define, affinity diagrams are used to:
- Calculate defects per million opportunities
- Organize large amounts of VOC data into meaningful categories (Correct answer)
- Determine process capability relative to specifications
- Map cause-and-effect relationships statistically
Correct answer: Organize large amounts of VOC data into meaningful categories
Affinity diagrams group qualitative VOC data (ideas, issues, observations) into logical categories to reveal patterns.
Question 5: Which of the following represents a correctly written goal statement for a Define phase charter?
- Reduce customer complaints by implementing new training
- Reduce order processing errors by 50% from 8% to 4% by Q4 2026 (Correct answer)
- Fix the process so customers stop complaining
- Investigate why errors occur in the order system
Correct answer: Reduce order processing errors by 50% from 8% to 4% by Q4 2026
A strong goal statement is SMART: it specifies the metric, the magnitude of improvement, and a target date.
Question 6: In Lean Six Sigma, 'Critical to Satisfaction' (CTS) metrics in the Define phase can include:
- Only product quality attributes
- Quality, delivery, cost, and safety attributes that matter to the customer (Correct answer)
- Only internal process efficiency metrics
- Statistical control limits set by engineering
Correct answer: Quality, delivery, cost, and safety attributes that matter to the customer
CTS metrics are broad and can encompass quality, timeliness, cost, and safety — any dimension customers value.
Question 7: Which of the following questions does the project charter's problem statement answer?
- Who caused the problem and how should they be corrected?
- What is wrong, where does it occur, and how significant is it? (Correct answer)
- What solution should be implemented and when?
- Which statistical tool will be used to solve the problem?
Correct answer: What is wrong, where does it occur, and how significant is it?
The problem statement describes what is going wrong, where it occurs, and quantifies the magnitude — without assigning causes or solutions.
Lean Six Sigma Yellow Belt Certification Define Phase Deliverables 5
Which communication element of the Define phase ensures that key stakeholders remain informed and supportive throughout the project?