Six Sigma yellow Belt Certification Exam
Questions and Answers
What is a stratification in quality tools? - Answer-Break down data into sub-categories
so that you can make sense of it. e.g. break down a pareto chart into three charts if the
pareto chart combined three categories
What is a Pareto chart and what does it do? - Answer-The ideology is that 80% of
problems are caused by 20% causes. This is similar to a histogram except we arrange
the events based on frequency (highest on the left), then use a cumulative percentage
curve to cut off events that account for 80% of the total problems
What is a histogram and what does it do? - Answer-It is a graph of frequency vs events
(categories). It helps visualize the shape, center, and variation of the distribution
What is a fishbone diagram (cause-effect diagram)? - Answer-A map of cause an effect
that extend and branch out causes of a problem, just like a fishbone.
What does a check sheet do? - Answer-Manually record observations and events for a
certain period of time
What are some elements of meeting management? - Answer-agenda, meeting minutes,
time management, require pre-work from participants, ensure right people in the
meeting, ensure right technical resources.
What are three decision making tool (team tool)? - Answer-1. Brainstorming 2. Nominal
group technique 3. Multi-voting
What are team life cycle (team stages)? - Answer-Forming, storming, norming,
performing, adjourning (breaking up)
What are five principles of lean - Answer-1. Identify value. 2. Map the value stream 3.
Create flow 4. Establish pull 5. seek perfection
What's the difference between lean and six sigma? - Answer-six sigma focuses on
reducing variation. Lean focuses on reducing waste, and also reduce inventory, cycle
time, management, provide safe workplace environment and improve employee morale.
A rapid improvement effort designed to produce results within a few days is called: -
Answer-Kaizan Blitz
Is VOC or CTQ more specific? What does they stand for? - Answer-VOC: voice of
customer. Unspecific.
CTQ: critical to quality, it breaks down VOC into measurable components
Questions and Answers
What is a stratification in quality tools? - Answer-Break down data into sub-categories
so that you can make sense of it. e.g. break down a pareto chart into three charts if the
pareto chart combined three categories
What is a Pareto chart and what does it do? - Answer-The ideology is that 80% of
problems are caused by 20% causes. This is similar to a histogram except we arrange
the events based on frequency (highest on the left), then use a cumulative percentage
curve to cut off events that account for 80% of the total problems
What is a histogram and what does it do? - Answer-It is a graph of frequency vs events
(categories). It helps visualize the shape, center, and variation of the distribution
What is a fishbone diagram (cause-effect diagram)? - Answer-A map of cause an effect
that extend and branch out causes of a problem, just like a fishbone.
What does a check sheet do? - Answer-Manually record observations and events for a
certain period of time
What are some elements of meeting management? - Answer-agenda, meeting minutes,
time management, require pre-work from participants, ensure right people in the
meeting, ensure right technical resources.
What are three decision making tool (team tool)? - Answer-1. Brainstorming 2. Nominal
group technique 3. Multi-voting
What are team life cycle (team stages)? - Answer-Forming, storming, norming,
performing, adjourning (breaking up)
What are five principles of lean - Answer-1. Identify value. 2. Map the value stream 3.
Create flow 4. Establish pull 5. seek perfection
What's the difference between lean and six sigma? - Answer-six sigma focuses on
reducing variation. Lean focuses on reducing waste, and also reduce inventory, cycle
time, management, provide safe workplace environment and improve employee morale.
A rapid improvement effort designed to produce results within a few days is called: -
Answer-Kaizan Blitz
Is VOC or CTQ more specific? What does they stand for? - Answer-VOC: voice of
customer. Unspecific.
CTQ: critical to quality, it breaks down VOC into measurable components
