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IASSC ICGB Exam Questions

Exam Name: IASSC Certified Lean Six Sigma Green Belt
Exam Code: ICGB ICGB-IASSC
Related Certification(s): IASSC Lean Six Sigma Certification
Certification Provider: IASSC
Actual Exam Duration: 240 Minutes
Number of ICGB practice questions in our database: 200 (updated: Nov. 10, 2025)
Expected ICGB Exam Topics, as suggested by IASSC :
  • Topic 1: Six Sigma Roles & Responsibilities/ Gage Repeatability & Reproducibility
  • Topic 2: Statistical Process Control (SPC)/ Critical to Quality Characteristics (CTQ’s)
  • Topic 3: Confidence & Prediction Intervals/ Elements of the Response Plan/ Deliverables of a Lean Six Sigma Project
  • Topic 4: Normal Distributions & Normality/ Overproduction, Correction, Inventory, Motion, Overprocessing, Conveyance, Waiting
  • Topic 5: General History of Six Sigma & Continuous Improvement/ Financial Evaluation & Benefits Capture
  • Topic 6: Attribute & Discrete Capability/ Understanding Inference/ Multiple Regression Analysis
  • Topic 7: Hypothesis Testing with Non-Normal Data/ Voice of the Customer, Business and Employee
  • Topic 8: General Concepts & Goals of Hypothesis Testing/ One and Two Sample Proportion
  • Topic 9: Control Chart Anatomy/ Data Collection for SPC/ Building a Business Case & Project Charter
  • Topic 10: Process Mapping, SIPOC, Value Stream Map/ Failure Modes & Effects Analysis (FMEA)
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Joana

7 days ago
I passed the IASSC Green Belt exam, and the Pass4Success practice questions were incredibly useful. There was a tricky question in the Measure Phase about calculating the sigma level of a process. I had some doubts about the formula, but I still passed.
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Vicky

14 days ago
My hands trembled before I began, but PASS4SUCCESS gave me structured prep and real-time feedback that boosted my belief in myself. Stay determined—your breakthrough awaits!
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Gail

22 days ago
Just passed the IASSC Lean Six Sigma Green Belt exam! Thanks Pass4Success for the spot-on practice questions. Saved me so much time!
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Tiffiny

30 days ago
I started the exam day feeling nervous and unsure, but PASS4SUCCESS walked me through focused review strategies and practice tests, and I finished with confidence—to any future test-takers, you can do this too!
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Mollie

1 month ago
Just passed the IASSC Certified Lean Six Sigma Green Belt exam, and the Pass4Success practice questions were a big help. One question that stumped me was about defining project scope in the Define Phase. I wasn't entirely sure how to set the boundaries, but I managed to get through it.
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Adelle

1 month ago
Just got my Green Belt certification! Pass4Success was key to my quick and effective preparation.
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Xuan

2 months ago
I passed the IASSC Green Belt exam, and the Pass4Success practice questions were essential. There was a question in the Control Phase about using a control plan to maintain process improvements. I had some doubts about the elements to include, but I still passed.
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Maryln

2 months ago
IASSC Green Belt exam success! Thanks Pass4Success for the accurate practice questions.
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Amber

2 months ago
I successfully cleared the IASSC Certified Lean Six Sigma Green Belt exam, thanks to the Pass4Success practice questions. One challenging question was about implementing mistake-proofing techniques in the Improve Phase. I wasn't sure which poka-yoke method to apply, but I got through it.
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Linn

4 months ago
Passed IASSC Green Belt with flying colors! Pass4Success made all the difference in my prep.
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Noble

5 months ago
Green Belt certified! Pass4Success's exam questions were a perfect match for the real thing.
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Carmen

7 months ago
Sampling is crucial. Any final thoughts or advice for future test-takers?
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Nikita

7 months ago
Nailed the IASSC Green Belt exam! Pass4Success questions were spot on.
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Vinnie

8 months ago
My advice would be to focus on practical applications of concepts. The exam tests your ability to apply knowledge in real-world scenarios. And definitely use Pass4Success for prep - their questions were spot-on and saved me so much study time!
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Otis

8 months ago
Passed the exam with confidence! Thanks to Pass4Success for their comprehensive materials. The exam included questions on process performance metrics - know how to calculate and interpret yield, throughput, and cycle time.
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Carmelina

8 months ago
Just became a Lean Six Sigma Green Belt! Pass4Success helped me prepare in record time.
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Yong

9 months ago
Just got certified! Pass4Success's practice exams were incredibly helpful. The actual exam had several questions on team dynamics and leadership - understand different team roles and conflict resolution strategies.
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Darrel

9 months ago
Successfully passed the exam! Pass4Success's question bank was a lifesaver. The exam included questions on 5S methodology - understand each step and how it contributes to workplace organization.
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Donte

9 months ago
IASSC Green Belt exam conquered! Grateful for Pass4Success's relevant study materials.
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Catalina

10 months ago
Aced my Green Belt exam! Thanks to Pass4Success for their targeted prep materials. The exam had several questions on sampling strategies - understand different sampling methods and when to use them in data collection.
upvoted 0 times
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Hillary

10 months ago
Excited to share that I passed the IASSC Green Belt exam, and the Pass4Success practice questions were very helpful. There was a question in the Analyze Phase about conducting a hypothesis test. I was unsure whether to use a t-test or an ANOVA, but I managed to pass.
upvoted 0 times
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Jolene

10 months ago
Just earned my certification! Pass4Success's practice tests were invaluable. The exam included questions on stakeholder analysis - know how to create and interpret stakeholder matrices.
upvoted 0 times
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Denny

10 months ago
Green Belt success! Pass4Success's practice tests were crucial for my last-minute preparation.
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Reid

11 months ago
The exam tested my understanding of visual management tools. Be prepared to identify and explain the purpose of different visual controls used in lean environments.
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Chantay

11 months ago
Successfully completed my LSSGB certification! Pass4Success's exam questions were spot-on. The exam had a focus on non-normal data analysis - understand when and how to use non-parametric tests.
upvoted 0 times
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Dominga

11 months ago
I passed the IASSC Certified Lean Six Sigma Green Belt exam, and the Pass4Success practice questions were a great help. One tricky question was about measuring process performance using a histogram in the Measure Phase. I wasn't sure how to interpret the data distribution, but I still passed.
upvoted 0 times
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Cristy

11 months ago
Passed my IASSC Green Belt today! Pass4Success made studying efficient and effective.
upvoted 0 times
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Ashton

12 months ago
Just cleared the Green Belt exam! Thanks to Pass4Success for their comprehensive question bank. The exam included several questions on hypothesis testing - know when to use different tests!
upvoted 0 times
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Broderick

12 months ago
Just passed the IASSC Green Belt exam, and the Pass4Success practice questions were crucial. There was a question in the Define Phase about creating a SIPOC diagram. I had some doubts about categorizing certain process steps, but I managed to get through it.
upvoted 0 times
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Elouise

1 year ago
I successfully passed the IASSC Certified Lean Six Sigma Green Belt exam, and the Pass4Success practice questions were invaluable. One question that puzzled me was about control charts in the Control Phase. I wasn't entirely sure when to use an X-bar chart versus an R-chart, but I still passed.
upvoted 0 times
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Eun

1 year ago
Voice of the Customer (VOC) was a key topic in my exam. Expect questions on VOC data collection methods and how to translate customer needs into measurable requirements.
upvoted 0 times
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Samira

1 year ago
IASSC Green Belt certified! Pass4Success questions matched the real exam perfectly.
upvoted 0 times
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Aron

1 year ago
Happy to share that I passed the IASSC Green Belt exam, and the Pass4Success practice questions were a big help. There was a question in the Improve Phase about selecting the best solution using a Pugh Matrix. I was a bit confused about the criteria weighting, but I got through it.
upvoted 0 times
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Agustin

1 year ago
The exam tested my knowledge of control plans. Be ready to identify key elements of a control plan and understand how it relates to the Control phase of DMAIC.
upvoted 0 times
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Cherelle

1 year ago
I passed the IASSC Certified Lean Six Sigma Green Belt exam, thanks to the Pass4Success practice questions. One challenging question was about root cause analysis in the Analyze Phase. I wasn't sure which tool to use between Fishbone Diagram and 5 Whys, but I still managed to pass.
upvoted 0 times
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Lelia

1 year ago
Wow, aced the IASSC Green Belt test! Pass4Success materials were a lifesaver for quick prep.
upvoted 0 times
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Mila

1 year ago
The exam tested my knowledge of DMAIC phases. Be prepared to sequence activities within each phase correctly. Understanding the logical flow of the DMAIC methodology is crucial.
upvoted 0 times
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Denae

1 year ago
Just cleared the IASSC Green Belt exam, and the Pass4Success practice questions were a lifesaver. During the Measure Phase, there was a tricky question on calculating process capability indices like Cp and Cpk. I had some doubts about interpreting the results, but it all worked out in the end.
upvoted 0 times
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Earlean

1 year ago
Just passed my IASSC Lean Six Sigma Green Belt exam! Grateful to Pass4Success for their spot-on practice questions. The exam had several questions on process mapping - make sure you can identify and interpret different types of process maps!
upvoted 0 times
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Bernadine

1 year ago
I recently passed the IASSC Certified Lean Six Sigma Green Belt exam, and I must say the Pass4Success practice questions were incredibly helpful. One question that stumped me was about identifying the Voice of the Customer (VOC) in the Define Phase. I wasn't entirely sure how to prioritize customer requirements effectively, but I managed to get through it.
upvoted 0 times
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Johanna

1 year ago
Just passed the IASSC Lean Six Sigma Green Belt exam! Thanks Pass4Success for the spot-on practice questions.
upvoted 0 times
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Carin

1 year ago
My exam experience was successful as I passed the IASSC Certified Lean Six Sigma Green Belt exam using Pass4Success practice questions. The exam included topics such as Critical to Quality Characteristics and Statistical Process Control. One question that I found challenging was related to CTQ's, where I had to identify the key characteristics that directly impact customer satisfaction. Despite my initial uncertainty, I managed to select the correct answers and pass the exam.
upvoted 0 times
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Cristy

1 year ago
Just passed the IASSC Lean Six Sigma Green Belt exam! Be prepared for questions on DMAIC methodology, especially in the Measure phase. Focus on understanding process capability and Sigma level calculations. Thanks to Pass4Success for the spot-on practice questions that helped me prepare efficiently!
upvoted 0 times
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Salome

1 year ago
I passed the IASSC Certified Lean Six Sigma Green Belt exam with the help of Pass4Success practice questions. The exam covered topics like Six Sigma Roles & Responsibilities and Statistical Process Control. One question that stood out to me was about Gage Repeatability & Reproducibility, where I had to calculate the measurement system variation. Thankfully, I was able to answer it correctly and pass the exam.
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Free IASSC ICGB Exam Actual Questions

Note: Premium Questions for ICGB were last updated On Nov. 10, 2025 (see below)

Question #1

One of the metrics commonly used in Lean Six Sigma is DPU. This acronym stands for ___________________.

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Correct Answer: B

Question #2

Multiple Linear Regressions (MLR) is best used when which of these are applicable? (Note: There are 3 correct answers).

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Correct Answer: C, D, E

Question #3

A periodic time frame can be used to arrange for Control Limit and Center Line calculations with good SPC implementation in a process.

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Correct Answer: A

Question #4

A 1-Sample t-test is used when you want to compare the Median of one distribution to a target value.

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Correct Answer: B

Question #5

The essence of Lean is to concentrate effort on removing waste while improving process flow to achieve speed and agility at lower cost.

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Correct Answer: A

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