CertifQ

OPTIONS Cause that happens periodically Cause that comes from outside of the process Cause that can be assigned a reason None of the above ANSWER Cause that can be assigned a reason. EXPLANATION Special causes can be tracked back to a reason and thus THE...

A company producing marker pens conducts external audits once production of a lot is completed. Several audits on 50 pens revealed 3 minor non-conformances. What is the probability that the next audit will reveal 0 non-conformances? OPTIONS 0.05 0.07 0.1 0.12 ANSWER 0.05 EXPLANATION Using...

OPTIONS Conclude process is stable Conclude process could be stable, but investigation needs to be done on trends Conclude process is out of control None of the above ANSWER Conclude process could be stable, but investigation needs to be done on trends EXPLANATION As you...

OPTIONS Leave the process to chance variations Identify signal and keep looking out for signals Center the mean None of the above Correct Option:A Leave the process to chance variations EXPLANATION A Black Belt doesn’t have to work on this process at all, as the...

OPTIONS 1.66 2 Cannot be determined 1 ANSWER 1.66 EXPLANATION Using standard formula (USL-LSL)/6 * Sigma, the answer is 1.66.

OPTIONS 1.2 1.33 1.6 2 ANSWER 1.33 EXPLANATION Using standard formula (USL-LSL)/6 * Sigma, the answer is 1.33.

OPTIONS Can’t say 1 Slightly less than 1 Slightly more than 1 ANSWER 1 EXPLANATION With the assumptions given, Cpk is equal to Cp thus 1 is correct.

OPTIONS Is the dispersion stableIs the mean shiftingIs the normal distribution shiftingDoes the process exhibit special variability ANSWER Does the process exhibit special variability EXPLANATION A Black Belt cannot calculate capability without knowing if the process is free from special causes or not, so THE...

OPTIONS Process needs to follow a normal fit for data Process needs to have two specification limits Process needs to have at least one specification limit Process needs to be stable ANSWER Process needs to follow a normal fit for data EXPLANATION While a lot...