CLSSGB Online Practice Questions and Answers

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

A. True

B. False

Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.

A. True

B. False

When a Belt is analyzing sample data she should keep in mind that 95% of Normally Distributed data is within +/- 2 Standard Deviations from the Mean.

A. True

B. False

Non-parametric testing is done when which of these are applicable? (Note: There are 3 correct answers).

A. When the traditional t tests don't produce the results we need

B. A Hypothesis Test for the Median of the population is in question

C. It does not require data to come from Normally Distributed populations

D. They look at the Median rather than the Mean of populations

E. When there are no parameters to measure in the process

Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.

A. True

B. False

Inferential Statistics is largely about Significance. There are both Practical and _______________ Significance to consider during an analysis of data in a Lean Six Sigma project.

A. Problematic

B. Impractical

C. Usable

D. Statistical

Those who are trained to the skill levels of a Black Belt are typically utilized to apply Lean Six Sigma methodologies what percentage of their time?

A. 25%

B. 50%

C. 75%

D. 100%

The Empirical Rule is important because it provides an estimate of the probability of an event occurring depending on the Standard Deviation from the Mean.

A. True

B. False

The Accuracy of a Measurement System addresses _________________.

A. Stability, Bias and Linearity

B. Repeatability and Reproducibility

C. Stability and Sensitivity

D. Precision and Sensitivity

If a process has Outliers which pair of charts is most preferable if subgroups will exist for the Continuous Data?

A. Individual-Moving Range

B. Xbar-R Charts

C. Xbar-S Charts

D. nP and P Charts

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

A. True

B. False

Which element of waste best describes "the unnecessary movement of materials and/or goods"?

A. Overprocessing

B. Motion

C. Conveyance

D. Correction

Lean had its origins in the development and practice of the ___________ Production System.

A. Honda

B. Toyota

C. Ford

D. Motorola

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.

A. True

B. False

The ____________ is important because it provides an estimate of the probability of an event occurring depending on the Standard Deviation from the Mean.

A. Shewhart Principle

B. Pareto Rule

C. Mean/Mode Spread

D. Empirical Rule