SIX SIGMA BLACK BELT SESSION 7
EXAM QUESTIONS AND ANSWERS 100%
PASS
A Lean Six Sigma team at an insurance company has been working on a project to reduce the
number of claim defects leading to denied claims. A control chart of claim denials is out-of-
control. What conclusion should the team draw from this condition?
A) The number of denials has gone up.
B) The number of denials has gone down.
C) The process is unstable over time.
D) The process is exhibiting less variability over time.
E) The process is exhibiting more variability over time. - ANS C) The process is unstable over
time.
A Lean Six Sigma team is working to reduce the frequency of medical errors, and wishes to track
the number of errors per patient per day. The sample size of patients varies from day to day.
Which type of attribute control chart should the team use?
A) c Chart
B) p Chart
C) np Chart
D) u Chart
E) cp Chart - ANS D) u Chart
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS 100%
PASS
A Lean Six Sigma team at an insurance company has been working on a project to reduce the
number of claim defects leading to denied claims. A control chart of claim denials is out-of-
control. What conclusion should the team draw from this condition?
A) The number of denials has gone up.
B) The number of denials has gone down.
C) The process is unstable over time.
D) The process is exhibiting less variability over time.
E) The process is exhibiting more variability over time. - ANS C) The process is unstable over
time.
A Lean Six Sigma team is working to reduce the frequency of medical errors, and wishes to track
the number of errors per patient per day. The sample size of patients varies from day to day.
Which type of attribute control chart should the team use?
A) c Chart
B) p Chart
C) np Chart
D) u Chart
E) cp Chart - ANS D) u Chart
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
