IASSC LSSGB sigma EXAM Latest Update - 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.
- 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?
- The number of distinct categories is small compared to the appraiser variation.
- Operator influence in the measurement is the main cause of variation.
- Repeat the calculations; no conclusion can be determined without a reproducibility
value.
- A reproducibility of zero means there is no operator effect on this measurement. -
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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?
- Center the mean
- Reduce Variations
- 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 _____.
- Value; Parameter
- Value; Statistic
- Statistic; Parameter
D. Parameter; Statistic - CORRECT ANSWER: C. Statistic; Parameter
A sample is to a statistic as a population value is to a:
- Sample
- Unit
- Parameter
- Measurement - CORRECT ANSWER: C. Parameter 2 / 4
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
- 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?
- Process failure mode and effects analysis
- Supplier input process output control
- 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 3 / 4
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 control chart based on the normal distribution such as the X-bar chart
- A control chart based on the Poisson distribution such as the u-chart
- A p-chart based on the binomial distribution
- 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?
- Non-response error
- Confidence interval
- Lazy consumer error
D. Mailing error - CORRECT ANSWER: A. Non-response error
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