Quiz: Six Sigma Green Belt Certification!

50 Questions

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Quiz: Six Sigma Green Belt Certification!

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!


Questions and Answers
  • 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. 

      Lead Small Projects.

    • 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. 

      None of the above answers.

  • 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. 

      Consult with your legal department.

    • 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