ICBB IASSC Lean Six Sigma – Black Belt Free Practice Exam Questions (2025 Updated)
Prepare effectively for your IASSC ICBB IASSC Lean Six Sigma – Black Belt certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
A natural logarithmic base is not required for which of these distributions for probability calculations?
The _______ is the most frequently occurring value in a distribution of data.
A Belt has determined that the inventory of repair parts at a rework station can be reduced by 45%. According to Cost of Poor Quality (COPQ) definitions inventory reduction would be considered _______________.
The two types of data that are to be used in Statistical Analysis are Attribute and Variance.
An ANOVA used across many dependent variables could increase the Beta risk.
Data that can be measured on a continuum and has meaningful decimal subdivisions are __________ data.
When a Belt Poka-Yoke’s a defect out of the process entirely then she should track the activity with a robust SPC system on the characteristic of interest in the defect as an early warning system.
Using this partial Z Table, how many units from a month’s production run are expected to not satisfy customer requirements for the following process?
Upper specification limit: 7.2 Lower specification limit: 4.3 Mean of the process: 5.9 Standard Deviation: 0.65 Monthly production: 450 units
The _____________ Distribution would be the most desirable for modeling the number of stitch defects in a portion of fabric.
The reported Cpk for a process with an average of 104 units, a spread of 18 units and upper and lower specification limits of 122 and 96 units would be?
Which of these is not a primary cause for Non-normal Data?
Contingency Tables are used to test for association, or dependency, between two or more classifications.
For Attribute Data, Process Capability is defined as the average proportion of nonconforming products.
Which statements are correct about the advanced Capability Analysis shown here? (Note: There are 3 correct answers).
If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement is incorrect?
Which of these are examples of business metrics or Key Performance Indicators commonly referred to as KPI’s?
For a Kanban to be successful which of these must occur?
Fractional Factorial designs are used to reduce the ____________ because the number of runs has been lowered.
Use this data to calculate the Z Score. Average of: 92, Standard Deviation: 2, Upper Spec Limit: 101
Which of these items are not part of what is necessary for successful Kaizens?
