Lean Six Sigma Green Belt LSSGB Exam Guides

1. The use of station warning lights, tool boards and jidohka devices in the application of Lean accomplish which of these principles?

2. A Lean Principle that addresses efficiency by the process worker is called ____________________?

3. While management of a company must set the stage for all improvement efforts, which of these 5S’s is primarily driven by management?

4. As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.

5. The use of Kanbans work best with pull systems for determining the timing of which products or services are produced.

6. When a Belt applies the practice of Poka-Yoke to a project challenge she is attempting to make certain the activity is _______________ .

7. The Lean Principle action in the 5S approach that deals with having those items needed regularly at hand and those items need less regularly stored out of the way is known as ___________.

8. SPC on the outputs is more preferred than SPC on the inputs when implementing SPC for your process.

9. Significant variation in process performance is a consequence of several causes that can be classified using which of the terminologies shown. (Note: There are 2 correct answers).

10. When it comes to Control one of the most effective means of eliminating defects is to ____________.

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

12. The data on SPC charts are typically constructed such that they have the most recent data point on the right hand side.

13. Which statement(s) describe an undesirable situation when implementing SPC?

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

15. After a Belt has put data through the smoothing process which chart would be used to look for trends in the data?

16. A Belt concludes a Lean Six Sigma project with the creation of a Control Plan. At what point can the Control Plan be closed?

17. When analyzing a data set we frequently graph one metric as a function of another. If the slope of the Correlation line is -2.5 we would say the two metrics are ___________ correlated?

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

19. Fractional Factorial designs for an experimental approach are used when ____________ about the multiple metric interaction in a process.

20. A Belt will occasionally do a quick experiment referred to as an OFAT which stands for ____________________.

21. Which statement(s) are correct for the Regression Analysis shown here? (Note: There are 2 correct answers).

22. The Regression Model for an observed value of Y contains the term β which represents the Y axis intercept when X = 0.

23. Which statement(s) are true about the Fitted Line Plot shown here? (Note: There are 2 correct answers).

24. After reviewing the Capability Analysis shown here select the statement(s) that are untrue.

25. The actual experimental response data varied somewhat from what a Belt had predicted them to be.

This is the result of which of these?

26. What is the Cycle Time, in minutes, for a process having a Throughput of 360 units per hour?

27. The generation of a Regression Equation is justified when we _____________. (Note: There are 4 correct answers).

28. According to the definition of Rolled Throughput Yield which of the following items best describe the purpose of RTY?

29. The following Business Case is constructed properly. “During fiscal year 2008 the warranty returns for electric razor Model 312 were 1.3%. This represents a gap of 0.5% over target costing the company $18,500 per month.”

30. Which statement(s) are true about the Fitted Line Plot shown here? (Note: There are 2 correct answers).

31. Select all the statements that are true after reviewing the Capability Analysis shown here. (Note: There are 4 correct answers).

32. 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.

33. A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.

34. __________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.

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

36. To draw inferences about a sample population being studied by modeling patterns of data in a way that accounts for randomness and uncertainty in the observations is known as ____________________.

37. For a Normal Distribution the Mean, Median and Mode are the same data point.

38. When two Inputs have an impact on the Output together yet seem to have no or little impact on their own this is called a/an ________________.

39. Hypothesis Testing can save time and help avoid high costs of experimental efforts by using existing data.

40. It is a Type II error if we decide to reject the Null Hypothesis when it is actually true.

41. A Belt experienced an Alpha of .05 and a Beta of .10 and knew these are the most common risk levels when running a Statistical test.

42. 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.

43. The Central Limit Theorem helps us understand the ___________ we are taking and is the basis for using sampling to estimate population parameters.

44. Hypothesis Tests determine the probabilities of differences between observed data and the hypothesis being solely due to _________ based on the result of the P-values.

45. The Alpha level of a test (level of significance) represents the yardstick against which P-values are measured and the Null Hypothesis is rejected if the P-value is which of these?

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

47. 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.

48. The Standard Deviation for the distribution of Means is called the ___________ and approaches zero as the sample size reaches 30.

49. 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?