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Pass your IASSC Certified Lean Six Sigma Black Belt exam with these free Questions and Answers

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QUESTION 51

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 $2,800 in order to stay within budget. Using a sample of 55 first article components, a Mean of the new product upgrade price of $2,240 and a Standard Deviation of $120 was estimated. Based on the data provided, the Z value for the data assuming a Normal Distribution is?

  1. A. 2.33
  2. B. 4.67
  3. C. 6.48
  4. D. 8.28

Correct Answer: B

QUESTION 52

When a Belt implements an improvement that is automated thus requiring no particular understanding for use he has applied which Lean tool?

  1. A. Mistake Proofing
  2. B. Kaizen Event
  3. C. 5S
  4. D. None of the above

Correct Answer: A

QUESTION 53

One of the primary deliverables from performing a SIPOC is to begin to understand which outputs have the greatest affect on the customer most valued inputs.

  1. A. True
  2. B. False

Correct Answer: B

QUESTION 54

If the production is for higher volume and monitoring and the Mean and variability is to be monitored for four machines producing product and the characteristic to be monitored is Variable Data, which SPC Chart is best to be selected?

  1. A. Xbar-R Chart
  2. B. Individual-MR Chart
  3. C. NP Chart
  4. D. CUSUM Chart

Correct Answer: A

QUESTION 55

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?

  1. A. The Standard Deviation is equal to $300.
  2. B. The Mean is less than $4,320.
  3. C. The Mean is equal to $4,060.
  4. D. The Mean is less than $4,200.
  5. E. The Mean is greater than $ 4,200.

Correct Answer: E

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