IASSC ICGB Actual Free Exam Questions & Community Discussion

  • Exam Code/Number: ICGB
  • Exam Name/Title: IASSC Certified Lean Six Sigma Green Belt
  • Certification Provider: IASSC
  • Corresponding Certification: Lean Six Sigma Green Belt
  • Exam Questions: 200
  • Updated On: Jun 25, 2026
Due to excessive pollution, GREEN Solutions Inc. is considering subsidizing public transportation to work for its employees. According to the manager it takes an average weekday commute of 39 minutes with a Standard Deviation of 7 minutes for the employees to get to work while they use their personal vehicles for their office commute while the management set a policy of not more than 40 minutes for their daily one-way commute. A survey conducted one day on 70 employees showed an average of 34 minutes commuting time using the metro public transportation system with a Standard Deviation of 21 minutes. Assuming a Normal Distribution for the commute times by either personal or public transportation, which of these is true?
Correct Answer: A Vote an answer
In the late 1980's William Smith coined the name Six Sigma for a methodology that had its origins at __________________ for quality related work being done there.
Correct Answer: D Vote an answer
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a ________________________Chart.
Correct Answer: D Vote an answer
With the use of Statistics we define the population to be a large enough sample set of data such that you can analyze it and draw conclusions as to all of the data.
Correct Answer: B Vote an answer
Which of the following is used to test the significance for the analysis of a Variance Table?
Correct Answer: D Vote an answer
Process Capability is a function of which of these?
Correct Answer: B Vote an answer
The purpose of a Process Map is to identify the complexity of the process and to record all actions and decision points in the process.
Correct Answer: A Vote an answer
Training cost $6,500 and a project required an initial investment of $47,500. If the project yields monthly savings of $3,500 beginning after 4 months, what is the payback period in months, before money costs and taxes?
Correct Answer: D Vote an answer
When looking at a distribution graph, the Mean is defined as the __________.
Correct Answer: C Vote an answer
Hypothesis Tests determine the probabilities of differences between observed data and the hypothesis being solely due to chance. This is determined based on the result of the ______________.
Correct Answer: D Vote an answer
A 1-Sample t-test is used when you want to compare the Median of one distribution to a target value.
Correct Answer: B Vote an answer
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
Correct Answer: A Vote an answer
Process Capability is a function of which of these?
Correct Answer: B Vote an answer
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