Assessment Flashcards
7 cards from real Lean Six Sigma Green Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Assessment flashcards as text
A Green Belt is assessing process stability using a control chart. Which pattern indicates a process that is out of statistical control?
Answer: Eight consecutive points on the same side of the centerline
Eight consecutive points on the same side of the centerline is a Western Electric rule indicating a non-random shift, signaling the process is out of statistical control.
During a Lean Six Sigma assessment, a team calculates process sigma level. A process with a DPMO of 6,210 corresponds to which sigma level?
Answer: 4 sigma
A DPMO of 6,210 corresponds to a 4 sigma process, which is the standard benchmark many organizations aim to achieve.
A Green Belt is assessing whether a measurement system is adequate. The Gauge R&R study shows total Gauge R&R is 35% of study variation. What is the appropriate conclusion?
Answer: The measurement system is unacceptable and must be improved
A Gauge R&R greater than 30% of study variation indicates the measurement system is unacceptable and requires improvement before use.
When assessing the voice of the customer (VOC), which tool is most effective for translating customer needs into measurable technical requirements?
Answer: Quality Function Deployment (QFD)
QFD, also called the House of Quality, systematically translates customer requirements (VOC) into specific engineering and technical specifications.
A Green Belt assesses a process and finds Cp = 1.5 but Cpk = 0.8. What does this indicate?
Answer: The process spread is adequate but the process is not centered
Cp measures potential capability (spread only) while Cpk measures actual capability (including centering); Cp > Cpk indicates the process has adequate spread but is off-center.
During the Measure phase assessment, a Green Belt determines that data is not normally distributed. Which approach is most appropriate for capability analysis?
Answer: Transform the data or use non-parametric capability indices
Non-normal data requires either a mathematical transformation (such as Box-Cox) or the use of non-parametric capability methods for accurate assessment.
A Green Belt is assessing waste in a process. Which type of waste is occurring when a highly skilled engineer spends time on data entry tasks?
Answer: Non-utilized talent
Non-utilized talent (sometimes called Skills waste) occurs when employees are assigned to tasks below their skill level, preventing the organization from benefiting from their full capabilities.