Basic Lean Six Sigma Black Belt Certification 1 Flashcards
6 cards from real Lean Six Sigma Black 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 6 Basic Lean Six Sigma Black Belt Certification 1 flashcards as text
In a Six Sigma project, Defects Per Million Opportunities (DPMO) is calculated as which of the following?
Answer: (Defects / Opportunities) × 1,000,000
DPMO = (Number of Defects / Number of Opportunities) × 1,000,000. This normalizes the defect rate to a per-million scale, allowing comparison across processes with different opportunity counts.
Which type of control chart is most appropriate for monitoring the proportion of defective items in subgroups of varying size?
Answer: p-chart
The p-chart monitors the proportion (fraction) of defective units and accommodates varying subgroup sizes, making it the correct choice when sample sizes differ across inspection periods.
In Design of Experiments (DOE), what is the purpose of replication?
Answer: To estimate experimental error and increase statistical power
Replication involves running the same experimental conditions more than once. This allows estimation of pure experimental error and increases statistical power, making effects easier to detect reliably.
In a Failure Mode and Effects Analysis (FMEA), the Risk Priority Number (RPN) is calculated as:
Answer: Severity × Occurrence × Detection
RPN = Severity × Occurrence × Detection. Each factor is rated on a scale (typically 1–10) and multiplied together to prioritize failure modes that require corrective action.
Which Lean tool is used to create a visual representation of the flow of materials and information required to bring a product from raw material to the customer?
Answer: Value Stream Map
Value Stream Mapping (VSM) documents all steps — both value-added and non-value-added — in the flow of materials and information, making waste and improvement opportunities visible across the entire process.
In hypothesis testing, a p-value of 0.03 with a significance level (α) of 0.05 leads to which conclusion?
Answer: Reject the null hypothesis because p < α
When the p-value (0.03) is less than the significance level α (0.05), there is sufficient evidence to reject the null hypothesis. The result is statistically significant at the chosen α level.