CSSBB Certified Six Sigma Black Belt Question and Answers

To properly analyze the variables impacting the output of a process we need to collect data that represents at least 80% of the variation in the process and assure ourselves we are collecting data from all three types of variation which are _______________.

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.

If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement(s) are correct? (Note: There are 3 correct answers).

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) ________.

A ___________ problem in the Measurement System suggests that there is a lack of consistency in the measurement over time.

Use this data to calculate the Z Score. Average of: 92, Standard Deviation: 2, Upper Spec Limit: 101

When a Belt creates a Process Map she will use a __________________ to depict a decision point requiring a Yes or No decision.

Using this data calculate the percentage of DPU.

Data: 763 defects, 18,000 units.

The relationship between a response variable and one or more independent variables is investigated and modeled by use of which of these?

The _______ is the most frequently occurring value in a distribution of data.

Which of these items contribute to what is necessary for successful Kaizen events?

Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperature exceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots per day were sold with a Standard Deviation of 0.7 pots. The statistical Degrees of Freedom for this example are?

The _____________ Distribution would be the most desirable for modeling the number of stitch defects in a portion of fabric.

An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?

From the variance F-test shown above, which of these conclusions is/are valid?

From this list select the items that define what an X-Y Diagram is. (Note: There are 4 correct answers).

Which statement(s) are incorrect about Fractional Factorial Designs?

Choose those characteristics of a Simple Linear Regression (SLR) Analysis that are applicable. (Note: There are 3 correct answers).

Much of the Six Sigma methodology is used to identify and remove causes for _____________ .

Which Experimental Design typically is most associated with the fewest number of input variables or factors in the design?

The reported Cpk for a process with an average of 98 units, a spread of 16 units and upper and lower specification limits of 115 and 90 units would be?

Which statement is NOT correct about the Fitted Line Plot shown here?

Fractional Factorial, ____________and Response Surface Method are types of planned experiments.

What is the Ppk of a process with a spread of 24 units, an average of 68, an upper limit of 82 and a lower limit of 54?

Which of these elements are not included in Implementation plans?

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.

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 Mann-Whitney test is a powerful test and is unique to situations from which of the choices listed? (Note: There are 2 correct answers).

One of the methods of testing a Measurement System is to have at least two people take multiple readings from the same instrument and of the same sample set to judge the Repeatability and Reproducibly. This approach is called a ______________ study.

A fundamental rule is that both Standard Deviation and Variance can be added.

Handling of warranty returns, process improvement team meetings and rework to meet customer expectations are all examples of business costs that are classified as ___________ .

From the variance F-test shown above, which of these conclusions is/are valid?

A Non-parametric Test should be used if just one distribution is not Normal out of the two or more gathered.

Data that can be measured on a continuum and has meaningful decimal subdivisions are __________ data.

The Lean toolbox includes all of the following items except __________.

A Belt rearranged the location of the parts inventory for a rework station locating the most often used parts to be within hand reach of the repair person. This rearrangement resulted in quicker repair times by eliminating one of seven major elements of waste which is the Waste of __________.

An ANOVA used across many dependent variables could increase the Beta risk.

The Control Limits width varies if the sample size varies for which type of chart?

For the data shown here which statement(s) are true? (Note: There are 2 correct answers).

Which of these are examples of business metrics or Key Performance Indicators commonly referred to as KPI’s?

All the data points that represent the total set of information of interest is called the ________________ .

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?