Q13: Which of the following is true about Control Limits and Specification Limits?
A Control limits are set by the customer
B Specification limits are set by the process owner
C It is best practice to set Control Limits narrower than Specification limits
D A suitable control chart and the right control limits will help to differential special
cause variation from common cause variation.
Q14: Which one of the following statements most accurately describes the following
string of numbers?
1.2, 1.4, 1.4, 1.8
A The mean is 1.45 and the SD approximately 0.22
B The mean is 1.44 and the SD is 0.685
C The mean is 1.1 and the SD is about 0.4
D The mean is 1.45 and the SD is 0.827
Q15: The p-value for a Moods Median test is 0.02 and the level of significance is set at
0.05, what decision is made?
A Use a different test
B Fail to reject null hypothesis
C Cannot determine
D Reject null hypothesis
Q16: What does SPC stand for?
A Standard Process Charting
B Statistical Process Control
C Standard Planning for Control
D System Performance Charting
Q17: A process with a process Sigma level of 6 over the long term would be expected
to produce which of the following?
A Approximately 3.4 defects per 1 Million Products
B Approximately 3.4 defects per 1 Million Defect Opportunities
C Approximately 3.4 defects per 1 Million Success Opportunities
D Approximately 3.4 defects per 1 Million Process Opportunities
Q18: In Lean Six Sigma, we generally consider 2 categories of variation in processes.
Which of the following are the correct 2 categories?
A Significant Variation and Practical variation
B Special Cause Variation and Common Cause variation
C Critical Cause Variation and Random Variation
D Significant Cause Variation and Low Variation