The Analyze Phase 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 The Analyze Phase flashcards as text
In FMEA (Failure Mode and Effects Analysis), what does the Risk Priority Number (RPN) represent?
Answer: The product of Severity, Occurrence, and Detection ratings
RPN = Severity × Occurrence × Detection; it prioritizes failure modes so teams focus improvement efforts on the highest-risk issues first.
Which of the following best describes a 'process map' used during the Analyze phase?
Answer: A visual representation of the steps, inputs, and outputs of a process
A process map (flowchart or value stream map) visually depicts each step in a process along with inputs, outputs, and decision points to identify inefficiencies.
A team calculates that their process produces 3.4 DPMO. What sigma level does this correspond to?
Answer: 6 sigma
3.4 defects per million opportunities corresponds to a Six Sigma level of performance, accounting for a 1.5-sigma shift in the mean.
What type of variable is 'number of customer complaints per day'?
Answer: Discrete (attribute) variable
Count data like complaints per day are discrete (attribute) variables because they can only take whole-number values and cannot be subdivided meaningfully.
Which lean concept refers to producing only what is needed, when it is needed, and in the amount needed?
Answer: Just-In-Time (JIT)
Just-In-Time (JIT) production pulls work through the system based on actual demand, eliminating overproduction and excess inventory waste.
A Yellow Belt team discovers that a key input variable (X) explains 72% of the variation in the output (Y). What statistical measure expresses this relationship?
Answer: Coefficient of determination (R²)
R² (coefficient of determination) expresses the proportion of output variation explained by the input variable(s) in a regression model.
During Analyze, a team identifies that a supplier change introduced a new type of defect. This is an example of which type of variation?
Answer: Special cause variation
A supplier change is a specific, assignable factor that creates special cause variation — a departure from the process's normal, stable behavior.