IASSC LSSGB sigma EXAM Latest Update 2024-
2025 Actual Exam 100 Questions and 100%
Verified Correct Answers Guaranteed A+ Verified
by Professor
A ''pull'' production system is a production system where you make as much product as
you can regardless of whether the customer needs it or not.
A. True
B. False - CORRECT ANSWER: B. False
A Pull production system only make the amount needed to meet the customer's specific
demands.
A calculation for reproducibility results in a value of 0 (zero), while repeatability yields a
positive number. Without any other considerations, what conclusion can be made
regarding the reproducibility result?
A. The number of distinct categories is small compared to the appraiser variation.
B. Operator influence in the measurement is the main cause of variation.
C. Repeat the calculations; no conclusion can be determined without a reproducibility
value.
D. A reproducibility of zero means there is no operator effect on this measurement. -
CORRECT ANSWER: D. A reproducibility of zero means there is no operator effect on
this measurement.
,It is possible to have a reproducibility result of zero when studying automated
equipment. Sometimes the appraiser only places a part in an instrument and an
automatic reading is recorded in a database. There is no appraiser or operator effect in
this kind of measurement, therefore, reproducibility is zero. So option d is correct.
A process has high variability and an off-centered mean. What is the first action the
team needs to take?
A. Center the mean
B. Reduce Variations
C. Increase the specifications
D. None of the above - CORRECT ANSWER: A. Center the mean
For this process, centering the mean will bring a lot of the non-conforming possibilities
within the specification limits. Option a is the answer.
A sample _____ is used to make inferences about the population _____.
A. Value; Parameter
B. Value; Statistic
C. Statistic; Parameter
D. Parameter; Statistic - CORRECT ANSWER: C. Statistic; Parameter
A sample is to a statistic as a population value is to a:
A. Sample
B. Unit
C. Parameter
D. Measurement - CORRECT ANSWER: C. Parameter
,A statistic is derived from a sample. A parameter is derived from a population. So option
c is correct.
A scoop samples 100 units/trial. What must be the average number of defects for there
to be an 80% chance that more than one defect will be found in the sample?
A. 5.4
B. 4.75
C. 3
D. 1.8 - CORRECT ANSWER: C. 3
This question requires using the Poisson table in reverse. Note that more than one
defect is desired. For the sample to contain more than one defect with an 80%
probability, a table must be used to determine a 20% probability of 0 or 1. From the
table, np=3.0. There must be three defects in the scoop. So option c is correct.
A Six Sigma team has been created to improve the process in which a company takes
orders for its products. Which of the following tools should the team use to determine all
the potential pitfalls and the actual defects that occur?
A. Process failure mode and effects analysis
B. Supplier input process output control
C. Process map
D. Design for Six Sigma - CORRECT ANSWER: A. Process failure mode and effects
analysis
A Process Failure Mode Effects Analysis (PFMEA) is a structured analytical tool used by
an organization, business unit, or cross-functional team to identify and evaluate the
potential failures of a process. PFMEA helps to establish the impact of the failure, and
, identify and prioritize the action items with the goal of alleviating risk. It is a living
document that should be initiated prior to the process of production and maintained
through the life cycle of the product.
A team of Six Sigma has reached the control stage of DMAIC. The team has
successfully reduced the defect of fabric critical stains from 73 to 1 per fabric roll. Now
what type of control chart should the team recommend?
A. A control chart based on the normal distribution such as the X-bar chart
B. A control chart based on the Poisson distribution such as the u-chart
C. A p-chart based on the binomial distribution
D. An np chart based on the binomial distribution - CORRECT ANSWER: B. A control
chart based on the Poisson distribution such as the u-chart
All four answers refer to valid control charts, but only answer B recognizes the Poisson
nature of the improvement achieved. Critical stains are defect counts which are
descriptive of the Poisson distribution. All other chart options are improper applications.
Option b is correct
According to a national grocery store chain manager, only 6% of customers who have
surveys mailed to their homes return them filled out completely. What is this type of
sampling error called?
A. Non-response error
B. Confidence interval
C. Lazy consumer error
D. Mailing error - CORRECT ANSWER: A. Non-response error
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