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Six Sigma Green Belt Questions with Accurate Answers
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Six Sigma Green Belt
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Six Sigma Green BeltSix Sigma - answera customer focused, well defined problem solving methodology
supported by a handful of powerful analytical tools
Continuous Improvement - answer driven by the execution of carefully selected projects
Goal of Six Sigma - answerto take small steps forward and no steps backward
Formal Six Sigma Definition - answer a business improvement approach that seeks to
find and eliminate causes of mistakes or defects in business processes by focusing on
process outputs that are of critical importance to customers
Who coined "Six Sigma"? - answer Motorola
Sigma Level - answer measures the capability of the process to perform defect free
work; the higher, the better quality
Defect - answeranything that results in customer dissatisfaction
Purpose of Six Sigma - answerto better serve customer needs and expectations thereby
providing increasing value to the customers and ensuring repeat business
Six Sigma Approach Requirements - answer1. Not just statistics, but changes in culture
of the organization;
2. A deep commitment from the highest levels of management;
3. A tolerance for endlessly questioning the validity of sacred company beliefs and the
traditional ways
For Six Sigma to be Effective - answer1. There must be a process in place;
2. The process must be brought into control statistically;
3. The processes must be improved (by reducing variation within the controlled
processes and bringing them closer to the target)
Six Sigma Structured Steps - answerDMAIIC: Define, Measure, Analyze, Improve,
Implement, Control
Theory of Profound Knowledge - answerDr. Deming claims to be essential to for any
organization that desired to be competitive in today's marketplace
, Knowledge of Systems - answer1. A system is a network of interdependent components
that work together to try to accomplish an aim;
2. Systems are management's responsibility;
3. Management's job is to optimize the entire system over time
Knowledge of Variation - answer1. Variation is the voice of the system or process;
2. Use statistics to find special and common causes of it;
3. Reducing variation reduces costs
When people do not understand variation - answer1. See trends where there are no
trends;
2. Blame and give credit to others for things over which they have little or no control;
3. Build barriers, decrease morale, and create an atmosphere of fear;
4. Never be able to fully understand past performance, make predictions about the
future and make significant improvements in the process
Knowledge of Psychology - answer1. People want to do a good job, contribute, and
have pride and joy in their work;
2. Need to tap into intrinsic motivation;
3. Must drive out fear and build trust
Knowledge of Knowledge - answerRational prediction requires theory and we build
knowledge through systematic revision and comparison of theory based on comparison
of prediction with observation
Common Cause Variation - answerrefer to situations, usually within those systems and
processes that are more ongoing, chronic, and persistent
Special Cause Variation - answerrefer to sentinel events, one-time occurrences, or
other unique out-of-the-ordinary circumstance
Stable Process - answernormal variation; predictable, in control, have known process
capability
Control - answerpredictability
Basic Theorem of Variation - answerIf you always do what you've always done, you'll
always get what you've always got
Corollary to the Basic Theorem of Variation - answerexpect a change, requires change
Process Monitoring - answermust know central location, spread, shape, relationship of
variation to time
Histogram - answera graphical representation of data in a bar chart format; used to
observe the shape of data
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