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LEAN - Six Sigma Questions with correct Answers
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Exam of 30 pages for the course Lean Six Sigma at Lean Six Sigma (LEAN - Six Sigma)
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LEAN - Six SigmaLean focuses on ____________ while Six-Sigma focuses on ____________. - answer
Efficiency, Consistency
The standard deviation measures the ______________ in a dataset. - answer Variation
of data
When the mean of a normal distribution is 10 and its standard deviation is two, ninety-
five percent of the data points within the distribution will fall between plus and minus
______________ standard deviations from the mean. - answer two
A Six-Sigma designed process will produce no more than _______ defects per million
outcomes. - answer3.4
A Six-Sigma designed process will produce no more than _______ defects per million
outcomes. - answer Mann Whitney
An X-bar chart for larger sample sizes, N>25, uses the ____________ to determine the
UCL and LCL. - answer Standard Error of Mean
An S-Chart is used to monitor process ___________ when the size of the sample, N, is
greater than 12. - answer Variation
Six-Sigma Tools used in the problem finding phase? - answer-Histogram
-Pareto Diagram
-Fish bone Diagram
Define Distribution of Sample Means - answerThe distribution that describes the way in
which sample means of a certain size are distributed about the population mean
Which of the following p-values, associated with the coefficient of an independent
variable in a multiple regression model suggests significance of that variable at the 0.05
level? - answer0.01
Upper and Lower Control Limits for large samples are commonly set at plus or minus
_________standard Errors of the Mean from the center line or target of the process
control chart. - answerThree
Which of the following Six-Sigma tools is most useful when identifying outputs and
inputs. - answerSIPOC Diagram
,Which of the following charts are used in the design of a control process where small
samples, N<12, will be taken and the results plotted on a control chart? - answerx-bar
and R-chart
What represents an Alpha error? - answera sample mean outside the LCL or UCL but
the process mean has not shifted
What suggests that as a process shifts farther and farther away from its target, the cost
to the company grows larger and larger.. - answerTaguchi Loss Function
A process has been redesigned. It is now necessary to determine if it has met its goals.
A sample is taken. Assume normality. Which of the following tests will determine if this
objective has been met? - answerOne sample test
The shortcut formula used to establish the LCL and UCL in an R-chart requires which of
the following preliminary steps to compute the value of the average range that will be
used as the centerline of the chart. - answerTaking 5 or more preliminary samples,
computing the range of these samples by subtracting the lowest result from the highest
result, then computing the average of these ranges.
The Cost of Poor Quality is defined as the ______________________________. -
answerInternal and external costs resulting from the failure to meet process
requirements
Lean focuses on? - answerEfficiency (minimizing waste and delays)
Six Sigma Focuses on? - answerQuality / consistency
Define 6 Sigma - answerA highly disciplined process that focuses on developing and
delivering near-perfect products and services
T or F
Designing efficient processes often takes less time than designing inefficient ones. -
answerFalse
T or F
About 75 percent of Fortune 500 companies utilize the concepts of Six-Sigma. -
answerTrue
T or F
The objective of Six Sigma is to deliver near-perfect products and services. -
answerTrue
T or F
Customer value must be defined from the customer's perspective. - answerTrue
, T or F
Organizational culture defines the environment within which Lean Six Sigma initiatives
can succeed or fail. - answerTrue
T or F
Customer-focused cultures are actually more common than one would expect. -
answerFalse
Customer Value is represented by what? - answer-Price
-Quality
-Serivece
Delivering customer value begins with _______________ . - answerCompany Culture
T or F
To meet quality objectives, Six Sigma sets targets and measures process outcomes
against there targets. - answerTrue
T or F
Carefully designed processes should not deviate at all from a target. - answerFalse
T or F
All products should be designed in such a way as to deliver perfect performance. -
answerFalse
What are the 4 Disciplines for a LEAN Company - answer1. Clear Direction
2. Enabling Contribution / Work Force
3. Customer Value
4. Discover Better Ways
T or F
A bottom-up approach to improving process performance is most commonly associated
with an organizational culture that emphasizes quality, efficiency and customer value. -
answerFalse
It must be top down, an approach that requires top management support.
T or F
Sustaining a lean organization is not difficult as evidenced by the performance of
General Motors since the 1950s. - answerFalse
To the contrary, sustaining a lean culture is a major management challenge.
T or F
The more layers there are in a management structure, the more likely it will be for an
organization to succeed in developing a lean processes. - answerFalse
Define a process - answerA system that transforms inputs into outputs
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