Six Sigma Black Belt Domain 7: Improve Welcome to your Six Sigma Black Belt Domain 7: Improve 1. Six Sigma Black Belt: Improve When implementing a solution to reduce cycle time in a manufacturing process, which of the following tools is MOST effective for ensuring that the changes do not negatively impact the process capability? A. Pareto Chart B. Control Chart C. Scatter Diagram D. Process Decision Program Chart (PDPC) None 2. Six Sigma Black Belt: Improve In the Improve phase of a Six Sigma project focused on reducing defects in a product line, which approach is MOST beneficial for prioritizing potential solutions? A. Brainstorming B. Cost-Benefit Analysis C. Benchmarking D. Failure Mode and Effects Analysis (FMEA) None 3. Six Sigma Black Belt: Improve When using Design of Experiments (DoE) in the Improve phase, which factor is CRITICAL for validating the experimental results? A. The order in which experiments are conducted B. Replication of experiments C. The number of factors tested D. The selection of control variables None 4. Six Sigma Black Belt: Improve In selecting a pilot area for testing process improvements, which criterion is MOST critical for a successful pilot? A. The area with the highest number of skilled workers B. The area most representative of overall process conditions C. The smallest functional area to minimize risk D. The area with the least resistance to change None 5. Six Sigma Black Belt: Improve Which of the following is the MOST effective method for ensuring sustainability of improvements made during the Improve phase? A. Conducting a post-implementation review B. Developing a detailed SOP (Standard Operating Procedure) C. Setting up a dedicated improvement team D. Regularly scheduled training sessions for all involved employees None 6. Six Sigma Black Belt: Improve For a Six Sigma project aimed at improving customer satisfaction with a service process, which tool is MOST effective for identifying the root cause of customer dissatisfaction? A. SIPOC Diagram B. Kano Model Analysis C. Voice of the Customer (VOC) Analysis D. Cross-Functional Process Map None 7. Six Sigma Black Belt: Improve In the context of the Improve phase, which technique is MOST useful for assessing the potential impact of proposed process changes on other departments? A. SWOT Analysis B. Process Simulation C. Interrelationship Diagraph D. Value Stream Mapping None 8. Six Sigma Black Belt: Improve Which of the following is an essential factor to consider when developing a solution to improve the reliability of a manufacturing process? A. The historical trend of process performance B. Employee morale and engagement C. The capability of process equipment D. The availability of raw materials None 9. Six Sigma Black Belt: Improve When optimizing a process to improve throughput, which of the following metrics is MOST critical for evaluating the success of the improvements? A. The number of defects per million opportunities (DPMO) B. The average time between failures (MTBF) C. The process cycle efficiency (PCE) D. The rate of return (ROR) None 10. Six Sigma Black Belt: Improve During the Improve phase, which statistical test is MOST appropriate for comparing the means of two independent samples to assess the effect of a process change? A. Chi-square test B. One-way ANOVA C. T-test D. Mann-Whitney U test None 11. Six Sigma Black Belt: Improve In the context of improving a process, which Lean tool is MOST effective for identifying and eliminating non-value-added activities? A. 5S B. Kanban C. Value Stream Mapping (VSM) D. Poka-yoke None 12. Six Sigma Black Belt: Improve When seeking to improve process output quality, which of the following methods is MOST effective for identifying the critical to quality (CTQ) characteristics? A. Fishbone Diagram B. Quality Function Deployment QFD C. Process Mapping D. 5 Whys Analysis None 13. Six Sigma Black Belt: Improve Which approach is BEST suited for quantifying the financial benefits of an improvement project in the Improve phase? A. Net Present Value (NPV) analysis B. Cost of Quality (CoQ) analysis C. Return on Investment (ROI) calculation D. Total Cost of Ownership (TCO) analysis None 14. Six Sigma Black Belt: Improve In applying Design for Six Sigma (DFSS) principles during the Improve phase, which methodology is MOST appropriate for developing a new process design? A. DMAIC B. DMADV C. PDCA D. PDSA None 15. Six Sigma Black Belt: Improve For a Six Sigma project aimed at reducing lead time in a supply chain, which metric is MOST critical for measuring improvement? A. Inventory turnover ratio B. Days Sales Outstanding (DSO) C. Lead time D. Fill rate None 16. Six Sigma Black Belt: Improve Which tool is MOST effective for visually representing the potential flow of a redesigned process during the Improve phase? A. Gantt chart B. SIPOC diagram C. Swimlane diagram D. Control chart None 17. Six Sigma Black Belt: Improve In the Improve phase, which technique is MOST useful for ensuring that the solutions are robust against variation? A. Taguchi methods B. Brainstorming C. Benchmarking D. Root cause analysis None 18. Six Sigma Black Belt: Improve When implementing a solution to reduce defects in a high-volume manufacturing process, which of the following approaches is MOST effective in sustaining the gains? A. Regularly updating the process documentation B. Implementing an automated defect detection system C. Conducting weekly team meetings to review performance D. Increasing the frequency of internal audits None 19. Six Sigma Black Belt: Improve For a project focused on improving the patient discharge process in a hospital, which of the following metrics is MOST critical for evaluating the success of the improvement? A. Patient satisfaction scores B. Number of staff involved in the discharge process C. Time from discharge decision to patient leaving D. Daily average number of discharged patients None 20. Six Sigma Black Belt: Improve In optimizing a process to improve energy efficiency, which of the following tools is MOST effective for identifying areas of energy waste? A. Ishikawa (Fishbone) diagram B. 5 Whys analysis C. Energy audit D. FMEA (Failure Mode and Effects Analysis) None 1 out of 20 Time is Up! Time's up