Black Belt W24 Certification Review

90 Questions | Total Attempts: 100

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IT Certification Quizzes & Trivia

Certification Exam Review Questions


Questions and Answers
  • 1. 
    An Invoice Operation is investigating their error rate.  The first step should be to
    • A. 

      Calculate the operation's DPMO

    • B. 

      Count the number of errors occurring

    • C. 

      Determine the process customers and their requirements

    • D. 

      Determine what constitutes a statistically significant sample

  • 2. 
    In a particular process, 500 orders were submitted, of which 50 contained errors.Of the 50, 35 were corrected and reprocessed.  The Throughput Yield for this process step is:
    • A. 

      99%

    • B. 

      97%

    • C. 

      95%

    • D. 

      90%

  • 3. 
    The Define Stage of DMAIC is
    • A. 

      Is linked with the Project Definition/Scoping and provides input to the Measure phase

    • B. 

      Stands alone in the methodology, but is always necessary

    • C. 

      Is not necessary when the project is mandated by top management

    • D. 

      None of the above

  • 4. 
    A frame is
    • A. 

      Another term for the population

    • B. 

      A sample from the population

    • C. 

      A list of items representing the population

    • D. 

      The RDMAIC methodology

  • 5. 
    The basic premise of Six Sigma is that sources of variation can be:
    • A. 

      Identified

    • B. 

      Quantified

    • C. 

      Eliminated or controlled

    • D. 

      All of the Above

  • 6. 
    The Throughput Yield for six departments processing an order in series is as follows:  99.7%, 99.5%, 95%, 89%, 92.3%, and 94%.  The probability of no defects acress all steps (rolled throughput yield) is:
    • A. 

      89%

    • B. 

      77%

    • C. 

      73%

    • D. 

      Approximately 30%

  • 7. 
    A Six Sigma level of quality:
    • A. 

      Implies 99.73% of the output will meet customer requirements

    • B. 

      Represents 3.4 defects per million opportunities

    • C. 

      Equates to a capability index of 1.33

    • D. 

      Provides half the defects of a 3 Sigma level of quality

  • 8. 
    What are the key "Critical to Quality" areas?
    • A. 

      Time, Resources, Money

    • B. 

      Delivery, Price, Resources

    • C. 

      Quality, Cost, Resources

    • D. 

      Cost, Delivery, Quality

  • 9. 
    The benefits of a process map would include:
    • A. 

      Communication of the process

    • B. 

      Identification of bottle necks

    • C. 

      Identification of non-value added steps

    • D. 

      All of the above

  • 10. 
    In a process, the upper and lower control limits are determined by:
    • A. 

      Process owner

    • B. 

      Customer

    • C. 

      Process

    • D. 

      Black Belt

  • 11. 
    The area under a normal curve to the right of the mean represents:
    • A. 

      3 standard deviations

    • B. 

      50% of the total area

    • C. 

      99% of the total area

    • D. 

      A and B

  • 12. 
    Special Cause variation is random, expected variation
    • A. 

      True

    • B. 

      False

  • 13. 
    A Process has seven critical characteristics, in a sample of 1,000 orders the number of opportunities for defects used in calculating DPMO is:
    • A. 

      10,000

    • B. 

      1,000

    • C. 

      7,000

    • D. 

      Cannot be determined

  • 14. 
    When every item has equal probability of being selected, the sampling strategy used is called
    • A. 

      Systematic Random Sampling

    • B. 

      Simple Random Sampling

    • C. 

      Complex Random Sampling

    • D. 

      None of the Above

  • 15. 
    Specification limits are established by
    • A. 

      Black Belt

    • B. 

      Only the number of samples used in the subgroup

    • C. 

      The process and are set at 6 standard deviations from the mean

    • D. 

      The customer

  • 16. 
    If a distribution is positively skewed, the mean will be
    • A. 

      Zero

    • B. 

      Less than the median

    • C. 

      Greater than the median

    • D. 

      Equal to the median

  • 17. 
    The concept of a "dashboard" is to
    • A. 

      Show how to improve a metric

    • B. 

      Show the critical metrics to monitor

    • C. 

      Show the solution to a problem

    • D. 

      All of the above

  • 18. 
    Manually calculate the standard deviation of the following sample set of data:52, 20, 24, 31, 35, 42
    • A. 

      13.8

    • B. 

      12.8

    • C. 

      11.8

    • D. 

      10.8

  • 19. 
    In developing a SIPOC, a Black Belt is concerned with documenting a process at a high level.  The major components include
    • A. 

      Process Description

    • B. 

      Customers

    • C. 

      Inputs/Outputs

    • D. 

      All of the above

  • 20. 
    The SIPOC is used to
    • A. 

      Identify gaps in the process

    • B. 

      Identify value added and non-value added steps

    • C. 

      Train new employees on the process

    • D. 

      Identify bottlenecks in the processes

  • 21. 
    Six Sigma objectives are to
    • A. 

      Center the process on target and to reduce variation

    • B. 

      Have zero defects

    • C. 

      Determine what constitutes a statistically significant sample

    • D. 

      A and B

    • E. 

      None of the above

  • 22. 
    If a distribution is positively skewed the median will be
    • A. 

      Zero

    • B. 

      Less than the Mean

    • C. 

      Greater than the Mean

    • D. 

      Equal to the Mean

  • 23. 
    Calculate the Standard Deviation of the following population data:50, 20, 35, 15
    • A. 

      13.7

    • B. 

      10.8

    • C. 

      15.8

    • D. 

      11.8

  • 24. 
    A process produces 350 orders, of which 50 contained errors.  Of the 50, 35 were corrected and processed.  The yield for this process is
    • A. 

      86%

    • B. 

      90%

    • C. 

      96%

    • D. 

      97%

  • 25. 
    Which is not a step in developing a Cause and Effect Matrix?
    • A. 

      Prioritizing outputs

    • B. 

      Calculating variation

    • C. 

      Listing inputs

    • D. 

      Correlating inputs and outputs

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