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IASSC Certified Lean Six Sigma Black Belt ICBB Exam

Attempt the Lean Six Sigma Black Belt practice test and solve real exam-like ICBB questions to prepare efficiently and increase your chances of success. Our IASSC ICBB practice questions match the actual IASSC Certified Lean Six Sigma Black Belt exam format, helping you enhance confidence and improve performance. With our ICBB practice exam software, you can analyze your performance, identify weak areas, and work on them effectively to boost your final Lean Six Sigma Black Belt exam score.

Vendor: IASSC
Exam Name: IASSC Certified Lean Six Sigma Black Belt
Registration Code: ICBB
Related Certification: IASSC Lean Six Sigma Black Belt Certification
Exam Track: Project Management
Exam Audience: Six Sigma Quality Analysts, Business Data Analysts,

Total Questions

300

Last Updated

24-08-2026

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Question: 1

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. In order to increase the Long Term Z value to 4, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical raw material component?

Question: 2

For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?

Question: 3

One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X's) and is commonly shown as which formula?

Question: 4

When doing Hypothesis Testing on Non-normal data Belts will use a ________________ to compare more than two sample proportions to each other.

Question: 5

If a process has subgroups for Variable data and the process runs for a long period of time, then the best pair of SPC Charts to use would be an Xbar and _________.

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