IASSC Lean Six Sigma – Black Belt
Last Update May 18, 2024
Total Questions : 300
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The Central Limit Theorem says that as the sample size becomes large the sample Mean distribution will form a Normal Distribution, ____________________.
Handling of warranty returns, process improvement team meetings and rework to meet customer expectations are all examples of business costs that are classified as ___________ .
When the Inputs, X’s, for your process are Normally Distributed about the Mean, the Outputs, Y’s, will be Normally Distributed.
Of the various types of data shown which is NOT representative of Variable Data.
How many experimental runs exist in a Full Factorial and fully randomized design for 5 factors with 2 replicates for the Corner Points and no Center Points? The factors in the experiment are only at 2-levels.
The most appropriate type of FMEA for a product before going into manufacturing is a ___________ FMEA.
A valid mathematical Regression represents all of the characteristics shown except _________________.
From the variance F-test shown above, which of these conclusions is/are valid?
Fractional Factorial Designs are used to analyze factors to model the output as a function of inputs if Hypothesis Testing in the Analyze Phase was inadequate to sufficiently narrow the factors that significantly impact the output(s).
Sally bought a blender from her local appliance store. When she changed blades the blender would not function. For the manufacturer this would be categorized as what type of cost?
Assessing process proportion as opposed to evaluating a process with respect to a set target can be done using which of these?
A Full Factorial experiment using a 3 level 3 factor approach has been proposed to test the viability of an extrusion machine experiment. How many treatment combinations will this approach involve?
For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?
A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. The Alternative Hypothesis in the above example is?
An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?
One of the primary deliverables from performing a SIPOC is to begin to understand which outputs have the greatest affect on the customer most valued inputs.
The _____________ Distribution would be the most desirable for modeling the number of stitch defects in a portion of fabric.
The Normal Distribution is considered to be the most important distribution in statistics and, among other things is defined as having a total area under the curve of 1, is mounded and symmetrical and the Mean, Median and Mode are _____________.
In a good Measurement System the most variation will be with part-to-part measurements. What should you do if the majority of variation is associated with the Gage R&R assuming the gage is technically capable?
A ___________ is used primarily to track the stability of the average value of a metric of interest.
Using this partial Z Table, how many units from a month’s production run are expected to not satisfy customer requirements for the following process?
Upper specification limit: 7.2 Lower specification limit: 4.3 Mean of the process: 5.9 Standard Deviation: 0.65 Monthly production: 450 units
For a Normal Distribution as samples size increases the Range in Mean and Standard Deviation decrease relative to the Mean and Standard Deviation of the population.
A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. In order to increase the Long Term Z value to 4, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical raw material component?
Some of the sources for different types of error that can be quantified using Statistical Analysis are ___________________.
Two of the key deliverables for the Measure Phase are a robust description of the process and its flow and an assessment of the Measurement System.
A statistical test or Hypothesis Test is performed to reject or fail to reject a stated hypothesis and it converts the Practical Problem into a Statistical Problem.
Fractional Factorial designs are used to reduce the ____________ because the number of runs has been lowered.
As a means of measuring the effects on other areas of a process as a result of changes in the primary metric we also define and track ________________.
If a Six Sigma project was to reduce changeover times and the team found the project success was decreasing over time since changeover times began to creep back up, which Lean tools should be considered in the Control Phase to reestablish and sustain the project success?
It would be more likely than not for a Belt conducting a Regression Analysis to find that the _______________________.
A Lean Six Sigma project is attempting to reduce inventory days. The Process Capability will be monitored as part of the Control Phase to track the sustainability of the improvement.
Which distribution type is best used for performing the Capability Analysis?
Situations where standardized work needs to be incorporated include all of these except _____________________.
Of the various types of data shown below which is NOT representative of Variable Data.
Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. Which of these items is a Visible Cost?
Early in a project a Belt will want to begin to identify and evaluate risk factors for the subject process and will therefore begin building a(n) ________.
Kanban establishes a means of monitoring production, conveyance and delivery information such that efficient flow is established. The method used by Kanban is to require a _________ before anything moves.
Much of the Six Sigma methodology is used to identify and remove causes for _____________ .
Relative to a Design of Experiments the term ________________ refers to variables being a linear combination of each other.
When conducting a Hypothesis Test using Continuous Data the proper sample size is influenced only by the extent to which we need to assess a Difference to be detected but not the inherent variation in the process.
When we compare short-term and long-term Capability which of these is true?
On a _________________ one can see a pattern from the graphed points such that conclusions can be drawn about the largest family of Variation.
Relative to a Design of Experiments the term Collinear refers to variables being a ________________ of each other.
The _______ is the most frequently occurring value in a distribution of data.
A ___________ is used primarily to track the stability of the average value of a metric of interest.