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ICBB Real Exam Questions

IASSC Certified - Lean Six Sigma Black Belt

424 questions available · Page 1 of 43

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Question 1 Single choice

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

  1. A

    NP Chart

  2. B

    Xbar-R Chart

  3. C

    I-MR Chart

  4. D

    C Chart

Show answer and explanation

Correct answer: B

Question 2 Single choice

Appropriate measures means that measurements are ______________.

  1. A

    Representative

  2. B

    Sufficient

  3. C

    Contextual

  4. D

    Relevant

  5. E

    All of these answers are correct

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Correct answer: E

Question 3 Multiple choice

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).

  1. A

    Vendor A with a much shorter lead time in delivery

  2. B

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

  3. C

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

  4. D

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

  5. E

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

Show answer and explanation

Correct answers: B, C, D, E

Question 4 Single choice

____________________ is the continuous hunt to close the gap between current and ideal situations.

  1. A

    Kanban

  2. B

    Kaizen

  3. C

    5S

  4. D

    Poka-yoke

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Correct answer: B

Question 5 Single choice

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

  1. A

    Color

  2. B

    Expense

  3. C

    Season

  4. D

    None

Show answer and explanation

Correct answer: B

Question 6 Single choice

The two types of data that are to be used in Statistical Analysis are Attribute and Variance.

  1. A

    True

  2. B

    False

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Correct answer: B

Question 7 Single choice

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.

  1. A

    True

  2. B

    False

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Correct answer: A

Question 8 Single choice

If the sample size increases the distribution approximates to ______________.

  1. A

    F distribution

  2. B

    Normal distribution

  3. C

    Chi-square distribution

  4. D

    Poisson distribution

Show answer and explanation

Correct answer: B

Question 9 Single choice

The distance between the Mean of a data set and the Point of Inflection on a Normal curve is called the
_______________.

  1. A

    Curve Spread

  2. B

    Standard Deviation

  3. C

    Numerical Average

  4. D

    Data Breadth

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Correct answer: B

Question 10 Single choice

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.

  1. A

    True

  2. B

    False

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Correct answer: A