Assessment Flashcards
7 cards from real Lean Six Sigma Yellow 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
What type of data is collected when counting the number of scratches on a painted surface?
Answer: Attribute data
Counting defects (scratches) produces attribute data, which is discrete and counts occurrences rather than measuring a dimension.
In a Lean Six Sigma assessment, what does Overall Equipment Effectiveness (OEE) measure?
Answer: The combined impact of availability, performance, and quality on productive output
OEE multiplies availability, performance rate, and quality rate to give a single metric of how effectively equipment is being used.
Which chart is most appropriate for assessing the proportion of defective items in a process when sample sizes vary?
Answer: p-chart
The p-chart tracks the proportion of defective units and accommodates varying sample sizes, making it suitable for attribute data with changing subgroup sizes.
A team uses a spaghetti diagram during process assessment. What does this tool primarily reveal?
Answer: Physical movement and travel paths of people or materials
A spaghetti diagram traces the physical movement paths in a workspace to identify excessive travel that represents waste.
When assessing a process, a team discovers that 80% of defects come from 20% of causes. Which principle does this illustrate?
Answer: Pareto Principle
The Pareto Principle (80/20 rule) states that a small number of causes typically account for the majority of problems or defects.
What is the primary purpose of a SIPOC diagram during the Define or Measure phase assessment?
Answer: To provide a high-level overview of the process including Suppliers, Inputs, Process, Outputs, and Customers
SIPOC gives the project team and stakeholders a concise, high-level view of the entire process scope before diving into detailed analysis.
During an assessment, a team finds that a process has a high Cp but a low Cpk. What does this indicate?
Answer: The process is capable but not centered within the specification limits
High Cp means the process spread fits within specs, but low Cpk reveals the process is shifted off-center, producing defects near one specification limit.