CSSBB Practice Exam Questions with Answers Certified Six Sigma Black Belt Certification

A valid Multiple Linear Regression (MLR) is characterized by all of these except?

Sally and Sara sell flower pots at their garage sale. Martha motivates Rose mentioning that they will sell a minimum of 16 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 15.2 pots per day were sold with a Standard Deviation of 0.6 pots. What is the Z value for this sales process?

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

If in an experiment all possible variable pairs sum to zero the design is Orthogonal.

Which of these graphical presentations displays the values of each individual reading?

What dollar amount of savings would a project show if it reduced your outstanding Accounts Receivable by $1.4 million dollars to $5.3 million total and your organization’s marginal cost of capital was 6.2%?

The class score distribution of schools in a metropolitan area is shown here along with an analysis output. Comment on the statistical significance between the Means of the two distributions. Select the most appropriate statement.

Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process?    

When one speaks of 20% of something contributing 80% of the affect they are referring to what is known as the _________________.

Kaizens or Kaikakus and Six Sigma projects are intended to create incremental process improvements versus breakthrough, significant improvements.

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?

Assessing process proportion as opposed to evaluating a process with respect to a set target can be done using which of these?

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

When a Belt conducts a Linear Correlation Analysis and finds that as an X increases the Y also increase then he has proven a ______________ correlation.

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

The two types of data that can be used in Statistical Analysis are Attribute and Variable.

Use this data to calculate the Z score. Average oF. 65, Standard Deviation: 3, Upper Spec Limit: 72

Relative to a Design of Experiments the term ________________ refers to variables being a linear combination of each other.

Of the various types of data shown which is NOT representative of Variable Data.

Measurement __________ is defined as the difference between the observed and the expected values for a given set of data.

In a Fishbone Diagram the 6M’s stand for Methods, Measurements, Machine, Man, Mother Nature and ____________ .

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.

Using this data calculate the percentage of DPU.

A natural logarithmic base is not required for which of these distributions for probability calculations?

For a Kanban to be successful which of these must occur?

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).

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

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?

On a _________________ one can see a pattern from the graphed points such that conclusions can be drawn about the largest family of Variation.

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. For the sales accomplished above, what test would validate if they met their requirements?

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).

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?

The primary objective in removal of waste is to improve the Order Production Cycle where the time from _________________ to the time of receipt of payment is compressed.

Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process? 

Kaizens or Kaikakus and Six Sigma projects are intended to create breakthrough, significant process improvement versus minor, incremental improvements.

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

The validity of the decision made with Hypothesis Testing is dependent upon all of these except ___________________.

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 ________________.

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

Which statements are correct about the advanced Capability Analysis shown here? (Note: There are 3 correct answers).

One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X’s) and is commonly shown as which formula?

A Belt has determined that the inventory of repair parts at a rework station can be reduced by 45%. According to Cost of Poor Quality (COPQ) definitions inventory reduction would be considered _______________.

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

Appropriate measures means that measurements are ______________.

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

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.

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?

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

When variation is removed from the output of a process then the process customer can have more confidence in the experience that results from the process.

One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X’s) and is commonly shown as which formula?

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 _______________.

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?

Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

Production Line 1 is able to complete 500 units per shift. Production Line 2 is able to finish 1,500 units per shift. Production Line 2 is 3 times faster than Production Line 1. This analysis is an example of ______________ Scale Data.

The reported Cpk for a process with an average of 104 units, a spread of 18 units and upper and lower specification limits of 122 and 96 units would be?

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

From this list select the best example of Bias in Sampling.

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

When the Inputs, X’s, for your process are Normally Distributed about the Mean, the Outputs, Y’s, will always be Normally Distributed.

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

When a Belt decides to use written procedures and visual controls to improve the consistency of the tasks that must occur in the process he is improving he has utilized the _________________ activity of 5S.

“A calculated time frame that matches customer demand” is a definition of what Lean Principles term?

Which one of the listed tools is frequently used to help drill down to possible causes once a Fishbone Diagram is constructed?

Which statement(s) are correct about the DOE Factorial plot output here? (Note: There are 3 correct answers).

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(s) are correct about the Regression shown here? (Note: There are 2 correct answers).

A natural logarithmic base is not required for which of these distributions for probability calculations?

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 ________________.

In a Fishbone Diagram the 6M’s stand for Methods, ____________, Machine, Man, Mother Nature and Materials.

The Hardware Store ordered ten lawn mower from the manufacturer and just before shipping the manufacturer found one to have a motor that wouldn’t start. For the manufacturer this would be categorized as what type of cost?

A Factorial Experiment based on a Level 2 Design with 6 factors would require 16 runs to fully assess the interactions.

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. For the sales accomplished above, what test would validate if they met their requirements?

A valid mathematical Regression represents all of the characteristics shown except ___________________________.

Which item(s) listed would impact the Process Capability for a process with a continuous output? (Note: There are 4 correct answers).

Customers make their decisions based on Features, Integrity (of the seller) Delivery and ___________?

If the production is for higher volume and monitoring and the Mean and variability is to be monitored for four machines producing product and the characteristic to be monitored is Variable Data, which SPC Chart is best to be selected?

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?

To be an effective Lean Six Sigma practitioner one must understand the difference between ___________________________.

For Attribute Data, Process Capability is defined as the average proportion of nonconforming products.

Assessing process proportion as opposed to evaluating a process with respect to a set target can be done using one or more of these. (Note: There are 2 correct answers).

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

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

The validity of the decision made with Hypothesis Testing is dependent upon all of the following except ______________________.

The Japanese born function of a Kaizen event utilizes a specific, step-by-step approach meant to bring about major changes to a process.

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?