Factors that should be considered when selecting six sigma

Question

Question 1. Factors that should be considered when selecting Six Sigma projects include the following EXCEPT:

• financial return.
• impacts on customers and organizational effectiveness.
• fit to existing government legislation(s) on quality.
• probability of success.

Question 2. At a Six Sigma quality level, if the process mean is held exactly on target, the expected result would be:

• 1.5 defects per thousand opportunities.
• 2.8 defects per ten thousand opportunities.
• 3.4 defects per million opportunities.
• 2.0 defects per billion opportunities.

Question 3. Calculating the average value of 5 sample measurements of door width is an example of:

• descriptive statistics.
• statistical inference.
• predictive statistics.
• analytical statistics.

Question 4. A mathematical function that assigns numerical values to every possible outcome in a sample space is called a _____.

• probability function
• population constant
• sample variable
• random variable

Question 5. A Six Sigma quality level means that the difference between the upper and lower specification limits is six standard deviations

• True
• False

Question 6. _____ are special types of data collection forms in which the results may be interpreted on the form directly without additional processing.

• Control charts
• Check sheets
• Statistical process controls
• Worksheets

Question 7. The sampling method where every item in the population has an equal probability of being selected is called:

• simple random sampling.
• stratified sampling.
• systematic sampling.
• judgment sampling.

Question 8. Half the tolerance is equal to the distance from the target to the upper specification limit.

• True
• False

Question 9. A change in quality level from 3-sigma to 4-sigma represents a:

• 1-fold improvement.
• 2-fold improvement.
• 5-fold improvement.
• 10-fold improvement.

Question 10. A confidence interval is a point estimate of a population parameter.

• True
• False