ICBB Online Practice Questions and Answers

How many experimental runs exist in a Full Factorial and fully randomized design for 4 factors with 2 replicates for the Corner Points and no Center Points? The factors in the experiment are only at 2- levels.

A. 10

B. 32

C. 256

D. 64

If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement is incorrect?

A. The Experimental Design is half-fractional

B. The Main Effects are confounded with only 4-way interactions

C. The Main Effects for the 5 factors are not aliased or confounded but the 2-way interactions are confounded with the 3-way interactions

D. The experiment has 8 experimental runs with the first factor at the high level

Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

A. It is unknown from this graph how many factors were in the Experimental Design

B. The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

C. The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

D. The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

The Lean toolbox includes all of these items except ________________.

A. Mistake Proofing

B. Visual Factory

C. Design of Experiments

D. Inventory Management

An ANOVA used across many dependent variables could increase the Beta risk.

A. True

B. False

A Lean Six Sigma project is attempting to reduce inventory days. The Process Capability will be monitored as part of the Control Phase to track the sustainability of the improvement.

Which distribution type is best used for performing the Capability Analysis?

A. Weibull Distribution

B. Normal Distribution

C. Exponential Distribution

D. Logistic Distribution

E. Gaussian Distribution

Which of these elements are not included in Implementation plans?

A. Work breakdown structure

B. Cost/Benefit ratios

C. Risk management plans

D. Planned audits of work completion

Which statement is NOT correct about the Fitted Line Plot shown here?

A. The independent variable is the reactant

B. If the reactant was 10 units, with 95% confidence we would expect a minimum yield of 148 units

C. With at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1

D. A reactant value between 6 and 8 units yields around 40 to 60

E. When the reactant increases, the expected yield would increase

Identify the Six Sigma tools and methodologies used to achieve the standard breakdown process.

A. Survey

B. Decomposition and integration

C. Benchmarking

D. Market research

Why a re-analysis of measurement system is required in a Six Sigma project?

A. It is mandatory requirement as per MSA

B. More precise measurements may be required due to reduction in variability

C. Since most of the Six Sigma projects use statistical softwares that require re-analysis

D. Re-analysis is done only when the previous analysis is detected to be incorrect