# ASQ CSSBB Six Sigma Black Belt Certification Exam Practice Test

Demo: 45 questions
Total 227 questions

## Six Sigma Black Belt Certification Questions and Answers

Question 1

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

#### Options:

A.

P Charts

B.

NP Charts

C.

Xbar-R Charts

D.

Time Series Charts

Question 2

For the data set shown here which of these statements is/are true? #### Options:

A.

Hypothesis Testing of Means or Medians cannot be done since there are an unequal number of observations for the 3 samples

B.

A Paired T-test would be applicable for comparing Grade B and Grade A since they follow each other in the data set

C.

Grade A has the lowest sample Mean of the 3 samples

D.

Question 3

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

#### Options:

A.

It is an assumption that the X’s (inputs) are not correlated to each other

B.

The X’s (inputs) are assumed to be independent of each other

C.

The Residuals from MLR analysis have to be Normally Distributed

D.

MLR is conducted based on a deliberate form of experimentation

E.

It is not possible to evaluate interactions in a MLR analysis

Question 4

What aspects of Measurement Systems Analysis (MSA) studies are applicable when the process used to measure does not damage the part?

#### Options:

A.

Destructive variable gage R&R and Crossed Study

B.

Destructive variable gage R&R and Nested Study

C.

Nondestructive variable gage R&R and Crossed Study

D.

Nondestructive variable gage R&R and Nested Study

Question 5

An operator checks that all boxes being packed contain enough products to fill the box. However, each box getting filled has a different number of products in it. This is a Reproducibility problem, not a Repeatability problem.

#### Options:

A.

True

B.

False

Question 6

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

#### Options:

A.

Population

B.

Sample

C.

Frame

D.

Question 7

A Factorial Experiment based on a Level 2 Design with 4 factors would require 16 runs to fully assess the interactions.

#### Options:

A.

True

B.

False

Question 8

Which of these might contribute to similar distributions having Unequal Variance?

#### Options:

A.

Extreme tails

B.

Outliers

C.

Multiple Modes

D.

All of the above

Question 9

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?

#### Options:

A.

The Standard Deviation is equal to \$300.

B.

The Mean is less than \$4,320.

C.

The Mean is equal to \$4,060.

D.

The Mean is less than \$4,200.

E.

The Mean is greater than \$ 4,200.

Question 10

Statistical Difference is the magnitude of difference or change required to distinguish between a true difference, brought about by change or improvement, and one that could have occurred by chance.

#### Options:

A.

True

B.

False

Question 11

To establish a sample size that will allow the proper overlap of distributions we do which of these?

#### Options:

A.

Multiply Alpha by 1.75

B.

Calculate one minus Beta

C.

Calculate Beta plus 2

D.

Multiply Beta by 3

Question 12

Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 22 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 18.2 pots per day were sold with a Standard Deviation of 0.9 pots. What is the Z value for this sales process?

#### Options:

A.

1.23

B.

1.62

C.

2.11

D.

4.22

Question 13

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

A.

The independent variable is the reactant

B.

If the reactant was 10 units, with 95% confidence we would expect a minimum yield of 148 units

C.

With at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1

D.

A reactant value between 6 and 8 units yields around 40 to 60

E.

When the reactant increases, the expected yield would increase

Question 14

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

#### Options:

A.

Continuous

B.

Surplus

C.

Discrete

D.

Variable

Question 15

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

#### Options:

A.

True

B.

False

Question 16

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

#### Options:

A.

True

B.

False

Question 17

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

#### Options:

A.

ANOVA and the Analysis of Variance

B.

Nonparametric tests and tests of Non-normal Data

C.

F-test and test of variances of 2 samples

D.

Practical and Statistical significance

Question 18

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

#### Options:

A.

Value Stream

B.

Kaizen event

C.

Takt time

D.

Kanban

Question 19

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?

#### Options:

A.

Weibull Distribution

B.

Normal Distribution

C.

Exponential Distribution

D.

Logistic Distribution

E.

Gaussian Distribution

Question 20

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) ________.

#### Options:

A.

FMEA

B.

SIPOC

C.

X-Y Diagram

D.

Team Charter

Question 21

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

#### Options:

A.

Multi-Vari Analysis

B.

Baldridge Channels

C.

One Factor at a Time or OFAT

D.

Factorial Design

Question 22

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. Select the answer that best states the Practical Problem.

#### Options:

A.

If the average cost per component is \$4,200 or less, then the purchase manager will introduce the new product upgrade with new components.

B.

If the average cost per component is greater than \$4,200, then the purchase manager will introduce the new product upgrade with new components.

C.

Only if the average cost per product upgrade is \$4,060, will the purchase manager introduce new product upgrades with new components.

D.

If the average cost per new product upgrade is less than \$180, then the purchase manager will introduce the new product upgrade with new components.

Question 23

A ___________ is used primarily to track the stability of the average value of a metric of interest.

#### Options:

A.

NP Chart

B.

Xbar-R Chart

C.

I-MR Chart

D.

C Chart

Question 24

When we compare short-term and long-term Capability which of these is true?

#### Options:

A.

Cp is better for the short term

B.

Both short-term and long-term performance are alike

C.

Performance tends to improve over time

D.

Cp is better for the long-term

Question 25

When analyzing the behavior of our process to assess customer satisfaction we are concerned about both the variation such that it stays within the spec limits and how well the Mean is __________________ the process requirements.

#### Options:

A.

Balanced against

B.

Over and above

C.

Twice as great as

D.

Centered relative to

Question 26

Six Sigma is a business improvement discipline whose fundamental view is based on a _________ oriented approach of the business.

#### Options:

A.

Profit

B.

Performance

C.

Process

D.

Predatory

Question 27

SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery. Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers). #### Options:

A.

Vendor A with a much shorter lead time in delivery

B.

Vendor B as it has a better consistency (lower variance) on lead time

C.

Vendor B since Vendor A shows a situation out of control as shown in red

D.

Vendor B since the Control Limits are much narrower than Vendor A

E.

Vendor B has higher lead time, but a process with much narrower Control Limits

Question 28

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

#### Options:

A.

0.75

B.

1.5

C.

2.25

D.

4.50

Question 29

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?

#### Options:

A.

1

B.

29

C.

30

D.

31

E.

2

Question 30

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

#### Options:

A.

ANOVA and the Analysis of Variance

B.

Nonparametric tests and tests of Non-normal Data

C.

Practical and Statistical significance

D.

F-test and test of variances of 2 samples

Question 31

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 ________________.

#### Options:

A.

Parallel process metrics

B.

Secondary metrics

C.

Tertiary metrics

D.

Industry standards

Question 32

Appropriate measures means that measurements are ______________.

#### Options:

A.

Representative

B.

Sufficient

C.

Contextual

D.

Relevant

E.

All of these answers are correct

Question 33

The method of Steepest Ascent guides you toward a target inside the original inference space.

#### Options:

A.

True

B.

False

Question 34

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.

#### Options:

A.

True

B.

False

Question 35

Which of the items listed do not define what an X-Y Diagram is?

#### Options:

A.

Created for every project

B.

Based on team's collective opinions

C.

Updated whenever a parameter is changed

D.

Used to show each step in a process

E.

A living document throughout project lifecycle

Question 36

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

#### Options:

A.

Median

B.

Mean

C.

Center Point

D.

Mode

Question 37

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

#### Options:

A.

True

B.

False

Question 38

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

#### Options:

A.

Mirror Image

B.

Directly Parallel

C.

Collinear

D.

None of the above

Question 39

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

#### Options:

A.

True

B.

False

Question 40

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

A.

It is unknown from this graph how many factors were in the Experimental Design

B.

The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

C.

The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

D.

The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

Question 41

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?

#### Options:

A.

0.67

B.

1.13

C.

1.33

D.

2.66

Question 42

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.

#### Options:

A.

True

B.

False

Question 43

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.

#### Options:

A.

Shift start

B.

Product development

C.

Receipt of an order

D.

New fiscal year

Question 44

Statistical Difference is the magnitude of difference or change required to distinguish between a true difference, brought about by change or improvement, and one that could have occurred by chance.

#### Options:

A.

True

B.

False

Question 45

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

#### Options:

A.

Measurements

B.

Merger

C.

Management

D.

Medical

Demo: 45 questions
Total 227 questions