Six Sigma Black Belt UPDATED ACTUAL
Exam Questions and CORRECT Answers
SWOT is an acronym for: - CORRECT ANSWER - strengths, weaknesses, opportunities,
threats
In a series of linked processes and associated feedback loops the product or service flows
________ and the information flows ___ - CORRECT ANSWER - downstream, upstream
A team has been asked to reduce the cycle time for a process. The team decides to collect
baseline data. It will do this by: - CORRECT ANSWER - obtaining accurate cycle times
for the process as it currently runs
Customer segmentation refers to - CORRECT ANSWER - grouping customers by one or
more criteria
A project activity not on the critical path has required 20% longer than the time originally
allocated. The project team should - CORRECT ANSWER - study the effect this will have
on other activities because the project may still be on schedule
A quality engineer employed by a hospital is asked to improve the process of medication storage
in locked cabinets near patient doors. One defect that occurs rarely is that the medication caddy
is left out when the cabinet is relocked. The engineer installs a gravity activated arm that will not
permit the door to close when the caddy isn't inside. This improvement is best described by
which approach to problem solving? - CORRECT ANSWER - Poka yoke
The operators of a manufacturing cell work out a more orderly arrangement for tool storage and
establish a schedule to maintain cleanliness on a daily basis. These improvements are best
described by which approach to problem solving? - CORRECT ANSWER - 5S
A team's goal is to improve information flow in a payroll function. They make thirty-three Post-
It® notes, each listing an issue for further investigation. After some discussion, they group them
into four categories: mandated record keeping, privacy concerns, insurance concerns and transfer
, concerns. This grouping process is best described by which approach to problem solving? -
CORRECT ANSWER - Affinity diagram
The primary metric for a project is reduced cost for process A . Baseline data might include -
CORRECT ANSWER - current maintenance costs
The term "expected value" is closest to the term - CORRECT ANSWER - mean
If the probability that event A occurs is .51, the probability that event B occurs is .64 and events
A and B are statistically independent then: - CORRECT ANSWER - the probability that
both A and B occur is 0.3264
The median is a better choice than the mean for a measure of central tendency if the data -
CORRECT ANSWER - often has outliers
A team wants a technique for determining and displaying priorities based on frequency of
various defect types. They should use - CORRECT ANSWER - Pareto chart
A team wants a technique for improving consistency of assembly operations. They should use -
CORRECT ANSWER - written and diagrammed work instructions
Samples of size n=36 are randomly selected from a population with mean = 125 and variance 12.
Find the variance of the distribution of sample means. - CORRECT ANSWER - 333
A medicine with efficacy of .52 is given to five patients. Find the approximate probability that at
least one of the patients is cured. (Hint: Use the binomial formula.) - CORRECT
ANSWER - .975
A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50
sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median
chart - CORRECT ANSWER - 12.52 and 12.72
Exam Questions and CORRECT Answers
SWOT is an acronym for: - CORRECT ANSWER - strengths, weaknesses, opportunities,
threats
In a series of linked processes and associated feedback loops the product or service flows
________ and the information flows ___ - CORRECT ANSWER - downstream, upstream
A team has been asked to reduce the cycle time for a process. The team decides to collect
baseline data. It will do this by: - CORRECT ANSWER - obtaining accurate cycle times
for the process as it currently runs
Customer segmentation refers to - CORRECT ANSWER - grouping customers by one or
more criteria
A project activity not on the critical path has required 20% longer than the time originally
allocated. The project team should - CORRECT ANSWER - study the effect this will have
on other activities because the project may still be on schedule
A quality engineer employed by a hospital is asked to improve the process of medication storage
in locked cabinets near patient doors. One defect that occurs rarely is that the medication caddy
is left out when the cabinet is relocked. The engineer installs a gravity activated arm that will not
permit the door to close when the caddy isn't inside. This improvement is best described by
which approach to problem solving? - CORRECT ANSWER - Poka yoke
The operators of a manufacturing cell work out a more orderly arrangement for tool storage and
establish a schedule to maintain cleanliness on a daily basis. These improvements are best
described by which approach to problem solving? - CORRECT ANSWER - 5S
A team's goal is to improve information flow in a payroll function. They make thirty-three Post-
It® notes, each listing an issue for further investigation. After some discussion, they group them
into four categories: mandated record keeping, privacy concerns, insurance concerns and transfer
, concerns. This grouping process is best described by which approach to problem solving? -
CORRECT ANSWER - Affinity diagram
The primary metric for a project is reduced cost for process A . Baseline data might include -
CORRECT ANSWER - current maintenance costs
The term "expected value" is closest to the term - CORRECT ANSWER - mean
If the probability that event A occurs is .51, the probability that event B occurs is .64 and events
A and B are statistically independent then: - CORRECT ANSWER - the probability that
both A and B occur is 0.3264
The median is a better choice than the mean for a measure of central tendency if the data -
CORRECT ANSWER - often has outliers
A team wants a technique for determining and displaying priorities based on frequency of
various defect types. They should use - CORRECT ANSWER - Pareto chart
A team wants a technique for improving consistency of assembly operations. They should use -
CORRECT ANSWER - written and diagrammed work instructions
Samples of size n=36 are randomly selected from a population with mean = 125 and variance 12.
Find the variance of the distribution of sample means. - CORRECT ANSWER - 333
A medicine with efficacy of .52 is given to five patients. Find the approximate probability that at
least one of the patients is cured. (Hint: Use the binomial formula.) - CORRECT
ANSWER - .975
A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50
sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median
chart - CORRECT ANSWER - 12.52 and 12.72
