Exam (elaborations)
LEAN SIX SIGMA TEST QUESTIONS WITH SOLUTIONS 2024
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Exam of 18 pages for the course Lean Six Sigma at Lean Six Sigma (LEAN SIX SIGMA TEST)
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LEAN SIX SIGMA TESTIn order to calculate a process capability index, what two facts must be known about the
process? - answer The specification limits and the standard deviation
Why is the normality assumption essential to the interpretation of the capability index? -
answer Because only normal distributions are capable of statistical control
The upper and lower specifications for a certain product are 7 lbs. and 7.3 lbs. Actual
data indicates that the product is currently running at an average of 7.465 lbs., with a
standard deviation of 0.030 lbs. The calculations indicate Cp = 1.645 and a Cpk= -1.81.
What conclusions can be made about the process? - answer The Cp and Cpk values
indicate that the process is not centered
When a process is not centered relative to specifications, which of the following
statements is true? – answer Cpk is the smallest value of either Cp upper or Cp lower
An engineer wants to improve a process and measures the sigma. What does sigma
represent? - answer Representing variation in the process
Benefits of Six Sigma adoption for an organization include: - answer Improved ability to
provide customer value
Why is Six Sigma considered scientific? - answerBecause of the system of questioning,
data collection, observation and testing.
Defects per million opportunities is a measure of performance. What is the units of
DPMO? - answerThere are no units
Six sigma may be defined as: - answerA method of analysis.
A philosophy for managing an organization
A set of statistical techniques.
Identify the data conversion that would be MOST difficult to accomplish: -
answerDiscrete data converted to variables data
Which of the following statements describes discrete data? - answerOf 225 people on
the airplane, 85 had connective flights
,Pallets of product are stated in a warehouse prior to shipment. There are indications
that container damage is occurring disproportionately at aisle and row end locations.
The best method of data collection to confirm this theory would be? - answerSequential
sampling
A histogram displays what type of information? - answerA graphical display of the
distribution of data.
For a normal probability distribution, the relationships among the median, mean, and
mode are: - answerThe are all equal to the same value
What is a good definition of varation? - answerVariation is the distribution of differences
of measurement outputs.
A KPI is defined by: - answerThe customer's issues
To effectively improve a process it is critical to: - answerSeparate the non-value added
activities from the value added activities.
A voice of the customer analysis does what for a LSS team? - answerDescribes the
customers' needs of the organization's product/service
What of the following is used to determine how to measure LSS peformance? -
answerVoice of the customer analysis
Input, process, and output indicators measure what? - answer1.
The performance of either the input(s), process, or output(s)
2.
Potential sources of variation that ultimately may result in customer dissatisfaction.
3.
Measures of what the LSS could focus on in the next (i.e. Measure) phase.
One would say that, from an overall perspective, the activities of a company are tied
together by: - answerCustomers
A SIPOC helps everyone in the company see the business from an overall process
perspective. However, it does NOT: - answerIdentify the few key business customers
Identification of the external customer is important because - answerIt helps identify the
customer's needs
Which technique does a LSS team use to make sure a potential project has clear
expectations? - answerProject Charter
, Identify a non-value added activity that would be considered a form of processing muda:
- answer1.
Any and all forms of transportation
2.
Reworking a product due to poor, initial work.
3.
An ergonomically unsound workplace
Which of the following is a valued added activity? - answerSigning up for college
classes.
Work Breakdown structure deals with: - answerProject schedule
An example of validating a project's financial results concerns the following: -
answerThe financial benefits of cost savings was confirmed by an outside expert.
An example of project feasibility would be the following: - answerThe scope of the
project is timely.
Six Sigma Tools and Techniques Are used for what? - answerTo attack the variation
present in processes.
Six Sigma is a structured data driven methodology for - answerEliminating waste from
processes, products, and other business activities while having a positive impact on
financial performance.
Six Sigma Methodology focuses on - answerCustomer Knowledge, Core Processes,
Accurate performance measures of both.
Six Sigma seeks to reduce - answerThe variability present in processes.
Six Sigma projects are selected based on - answerTheir ability to contribute to and
enhance an organization's financial performance
Lean - answerEliminating the unnecessary
Six Sigma - answerImproving the necessary
DMAIC - answerDefine, Measure, Analyze, Improve, Control
A project proposal - answerCreates a general understanding of what is needed
A project proposal should contain: - answer•scope
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