# Quiz: Six Sigma Green Belt Certification!

50 Questions  Settings  Feel like you have what it takes to earn a green belt in Six Sigma? Test your knowledge on the subject right now in this quiz and perhaps you’ll be one step closer to achieving that goal!

Related Topics
• 1.
• A.

A management methodology that uses only statistical tools to improve customer experience.

• B.

A customer-focused problem-solving methodology that uses powerful statistical tools to reduce variation and improve processes.

• C.

A management methodology that is primarily focused on achieving financial results.

• D.

A customer-focused problem-solving methodology used exclusively within the manufacturing sector.

• 2.
Which Role is not traditionally performed by a Green Belt?
• A.

Data Gathering

• B.

Analysis

• C.

• D.

Coach and mentor other Six Sigma Practitioners.

• 3.
• A.

2, 5, 1, 4, 3

• B.

1, 2, 5, 4, 3

• C.

3, 2, 1, 5, 1

• D.

2, 1, 5, 4, 3

• 4.
• A.

We can expect 3.2 defects per million opportunities.

• B.

It has a yield of 99.997%

• C.

We can expect 3.4 defects per million opportunities.

• D.

It has a yield of 99.9967%

• 5.
• A.

5 to 15

• B.

4 to 16

• C.

2 to 8

• D.

6 to 14

• 6.
• A.

Bell-shaped, a variance of 1, the mean=median=mode.

• B.

Bell-shaped, symmetrical about the mean, a single mode.

• C.

Un-Symmetrical about the mean, a natural tolerance of three standard deviations, unimodal.

• D.

Symmetrical about the mean, bell-shaped, discrete data.

• 7.
A shape referred to as Platykurtic is:
• A.

Flatter than the Normal Distribution.

• B.

Narrower than a Normal Distribution.

• C.

Same as a Normal Distribuiton.

• D.

• 8.
A process is in-control and stable.  Describe the type of variation that exists in the process.
• A.

Special Cause variation.

• B.

Natural Variation.

• C.

Out-the-ordinary varation.

• D.

Non-random variation.

• 9.
• A.

1,3,4,5

• B.

1,2,4

• C.

1,2,4,5

• D.

1,4,5

• 10.
Indicate which control char(s) is the most sensitive for measuring time as data:
• A.

Np chart.

• B.

X bar R Chart.

• C.

P Chart.

• D.

Individuals and Moving Range.

• 11.
Which one of the characteristics below does not reflect common cause variation:
• A.

Trend

• B.

In-Control

• C.

Predictable

• D.

Stable

• 12.
• A.

Do nothing.

• B.

Continue taking data measurements to confirm your belief.

• C.

Stop and identify the Special Causes.

• D.

Stop, identify the special Causes and eliminate them.

• 13.
• A.

The process is in-control (within the UCL and LCL).

• B.

The process appears to be too table and should be questioned.

• C.

The process needs to be checked for special causes.

• D.

The wrong control chart has been selected.

• 14.
The number of data points for a sample is 100. Indicate the approximate number of classes one needs to use for grouped data?
• A.

10

• B.

5

• C.

20

• D.

100

• 15.
If the salary of professionals is inversely proportional to their age, it indicates ___________ relationship between the two variables?
• A.

Positive

• B.

Negative

• C.

No Correlation

• D.

Linear

• 16.
• A.

4,4,5

• B.

3,5,4

• C.

4,3,5

• D.

4,5,5

• 17.
• A.

2.18,6

• B.

2.5,6

• C.

3.18,6

• D.

6,2.18

• 18.
• A.

The process is capable.

• B.

The process is capable but not centered.

• C.

The process is highly capable and centered.

• D.

The process is not capable.

• 19.
A process you are monitoring produces 150,000 customer transactions per year. Your analysis indicates the percent non-conforming is 0.2%.  What is the DPMO?
• A.

300

• B.

1,800

• C.

2,000

• D.

20,000

• 20.
Using the same information from question 19, what is the number of defective transactions?
• A.

300

• B.

1,800

• C.

2,000

• D.

20,400

• 21.
• A.

• B.

Develop the appropriate control chart.

• C.

It is still a normal distribution.

• D.

Stop the process and bring it back into control.

• 22.
• A.

X Bar and R Chart.

• B.

X Bar and the Standard Deviation Chart.

• C.

X Bar and the Variance Chart.

• D.

X Bar and the Mean Chart.

• 23.
An attribute chart can be represented by all of the following EXCEPT:
• A.

P Chart

• B.

R Chart

• C.

NP Chart

• D.

C Chart

• 24.
• A.

5,2,3,4,1

• B.

2,5,3,4,1

• C.

1,2,5,3,4

• D.

5,1,2,4,3

• 25.
Select the key attributes of successful Six Sigma programs. 1) Senior management commitment 2) High ROI projects 3) Projects with short durations 4) Proper funding 5) Well-trained staff 6) Properly scoped projects
• A.

1,3,5,6

• B.

1,4,5,6

• C.

1,5,6

• D.

1,2,4,5,6

• 26.
These provide support, resources and remove roadblocks.  They have more in-depth understanding of the methods - measurements and interpretations of process measurements.  They are referred to as:
• A.

Champions

• B.

Master Black Belts

• C.

Steering Committee

• D.

Process Owners

• 27.
• A.

X bar R Control Chart

• B.

Pareto Chart

• C.

Histogram

• D.

Cumulative Frequency Graph

• 28.
What are the 3 key attributes of Six Sigma that best summarize why it is a compelling methodology for reducing variation and improving processes in the mind of Senior Management?
• A.

Data Driven, Creative, Streamlined

• B.

Customer Focused, Data Driven, ROI Oriented

• C.

Customer Focused, Statistical Emphasis, Conformity - Driven

• D.

Data Driven, Methodical, ROI Oriented

• 29.
A company using Six Sigma methodology is operating at a 99.99967% defect-free rate.  What is its Sigma Level and failure rate?
• A.

3 Sigma, 3.4 DPMO

• B.

4.5 Sigma, 233 DPMO

• C.

5.0 Sigma, 233 DPMO

• D.

6 Sigma, 3.4 DPMO

• 30.
• A.

Control Charts, Pareto Charts, Fish-Bone Diagrams

• B.

Pareto Charts, Capability Indices, Control Charts

• C.

Pareto Charts, Fish-Bone Diagrams, Scatter Plot Diagrams

• D.

Scatter Plot Diagrams, Pareto Charts, Correlation

• 31.
List the 3 key activities - in correct order - for determining if a proceess is normally distributed, in-control and capable of consistently meeting customer requirements.
• A.

Construct a histogram, Prepare Control Charts, Calculate Capability Indices

• B.

Construct a SIPOC, Prepare Control Charts, Calculate Cp and Cpk.

• C.

Calculate the 3 measures of Central Tendency, Calculate Capability Indices, Prepare Control Charts

• D.

Prepare CTQs, Construct Control Charts, Calculate Capability Indices

• 32.
The average time spent waiting in queue for a bank teller is 8 minutes.  The Standard Deviation is 30 seconds.  What is the tolerance of the process that exhibits the limits of normal variation?
• A.

6 to 10 minutes

• B.

7 to 9 minutes

• C.

6.5 minutes to 9.5 minutes

• D.

3 minutes to 12 minutes

• 33.
The X Bar R Chart uses two control charts to monitor a process.  What are they?
• A.

Mean and Standard Deviation

• B.

Mean and Range

• C.

Mean and Variance

• D.

Grand Average and Variance

• 34.
Select the correct mean, median and mode for the following sample: 5,3,3,6,3,4,10.
• A.

4.86,4,3

• B.

4.86,3,4.5

• C.

5,3,4.5

• D.

4.86,3,4

• 35.
What is the range and standard deviation for the above sample?
• A.

7,2.54

• B.

2.54,7

• C.

4.86,3

• D.

5,2.54

• 36.
A process has the following X values (1,2,3,4,5) and Y values (2,4,6,8,10).  What is the relationship between the two variables?
• A.

Linear

• B.

Negative

• C.

Positive and Linear

• D.

No Correlation

• 37.
• A.

1,000,000

• B.

84,000

• C.

144,000

• D.

576,000

• 38.
If the company is operating at 3 Sigma in the above example what is the percent conformance?
• A.

99.73%

• B.

99.97%

• C.

99.997%

• D.

68.26%

• 39.
A process has a CP = 1 nd a Cpk =  1.  Interpret these capability indices:
• A.

The process is centered but not capable

• B.

The process is not in control

• C.

The process is not capable

• D.

The Process is centered and capable

• 40.
• A.

There is no difference between the terms; both are used to indicate if a process is in control

• B.

Control Limits are set by the customers; Specification Limits are derived by the process

• C.

Control Limits are derived by the process; Specification Limits are set by the customer

• D.

Control Limits are typically 3 standard deviations from the mean; Specification Limits are typically 3 standard deviations from the target

• 41.
A process is out-of-control.  Describe the type of variation that exists in the process.
• A.

Random Variation

• B.

Special Cause Variation

• C.

Common Cause Variation

• D.

Inherent Variation

• 42.
• A.

Take immediate action to identify root causes of the common cause variation

• B.

Increase the specification limits to ensure the process is capable

• C.

Continually and gradually improve the stable process

• D.

Stop the process, identify the causes, and eliminate them

• 43.
You are monitoring a process and evidence of trending in the control chart.  What is the most likely issue going on?
• A.

New operators

• B.

Different shifts

• C.

Changes in materials

• D.

Wear of machinery

• 44.
Which item below most naturally follows the development of a SIPOC diagram?
• A.

A Process Map

• B.

Voice of the Customer

• C.

Critical-to-Quality Requirements

• D.

Project Charter

• 45.
The Variance for an equipment installation is 36 square minutes.  What is the Standard Deviation?
• A.

72 minutes

• B.

18 minutes

• C.

6 minutes

• D.

Need to know the mean to compute

• 46.
• A.

As one variable changes, one cannot predict a value for the other variable

• B.

As one variable increases, the other variable decreases

• C.

As one variable decreases, the other variable decreases

• D.

As one variable decreases, the other variable increases

• 47.
The term Design of Experiments was coined by:
• A.

Taguchi

• B.

Deming

• C.

Feigenbaum

• D.

Crosby

• 48.
If the number of data points given is 121, the number of class intervals for constructing a HIstogram would be calculated as:
• A.

10

• B.

20

• C.

11

• D.

12

• 49.
• A.

.0913%

• B.

.00913%

• C.

.0781%

• D.

.00781%

• 50.
Collecting the customer needs and converting them to rquirements is referred to as:
• A.

Voice of the Process

• B.

Voice of the Customer

• C.

Requirements Manipulation

• D.

QFC