The median is a better choice than the mean for a measure of central tendency if the data:
Correct Answer: C
Question 7
Which of the following elements should be part of the control phase of a Six Sigma project?
Correct Answer: D
Lessons learned should be part of the Control Phase because project closure is not only about sustaining gains, but also about capturing knowledge that can benefit future projects and ongoing process management. In Six Sigma, the Control Phase formalizes what was improved, how it will be monitored, who owns the process, and what can be transferred to others in the organization. Documenting lessons learned helps preserve insight about what worked well, what barriers were encountered, which controls were effective, and what should be done differently next time. This information supports organizational learning and strengthens future project execution. Project charter and objectives belong primarily to Define, role definitions are established earlier in project planning, and data collection methods are typically developed in Measure and refined during analysis and control planning. While data collection may continue in Control, the specific element listed here that is characteristic of project closeout is lessons learned. Therefore, the correct answer is D, Lessons learned, because the Control Phase includes standardizing gains and capturing experience for long-term organizational benefit.
Question 8
If you can Poka-Yoke a defect out of the process entirely then you do not need use SPC on the characteristic of interest in the defect.
Correct Answer: A
Question 9
The primary metric for a project is reduced cost for process A . Baseline data might include:
Correct Answer: A
Question 10
Which of the following actions will support design for manufacturability (DFM)?
Correct Answer: A
The correct answer is A. Ensuring that product tolerances are reasonable . In the CSSBB DFSS material, manufacturability is one of the key DFX characteristics that must be considered during product development. Supporting DFSS content also links design to tolerance / robust design , showing that producibility depends on making design requirements realistic for manufacturing capability. Reasonable tolerances are essential to DFM because overly tight tolerances can increase cost, reduce yield, complicate production, and make the design difficult to produce consistently. A design may function well in theory yet still be poor from a manufacturability standpoint if it demands unnecessary precision or impractical processing conditions. The other options are less direct. KPOVs relate to key output variables, test measurement uncertainty is a metrology issue, and takt time is a Lean flow concept rather than a DFM design action. Since manufacturability is about making the design practical and efficient to produce, the best verified answer is A. Ensuring that product tolerances are reasonable .
