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Sunday 6 January 2013

IIBM Exam paper : CERTIFIED SIX SIGMA GREEN BELT:contact us for answers at assignmentssolution@gmail.com


Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 1
CERTIFIED SIX SIGMA GREEN BELT
EXAMINATION PAPER
Guideline for paper
Total No. of Question is 100.
The minimum passing marks is 40%
Each question carries 1 mark.
Answer all the questions.
Total: 100 Marks
1. The Following is a sample data set.
10 8 8 6 5
What is the variance of this data set?
a. 3.0
b. 3.8
c. 7.3
d. 7.4
2. An auditor should use a histogram in a quality audit to do which of the following?
a. Provide objective evidence that the audited uses statistical process control (SPC)
b. Expose patterns that are normally difficult to detect
c. Interpret data for a trend chart
d. create a stratified tally diagram
3. Comparing how a process is actually performed against the documented work instruction for that
process is an example of which of the following techniques?
a. Quantitative
b. Qualitative
c. Statistical
d. Random sampling
4. Attribute sampling should be used when
a. The data are measurements in metric units.
b. Ayes-or-no decision is to be made.
c. The population has variability.
d. A multi-stage sampling plan is needed.
5. Scatter diagrams are best described as
a. Histograms.
b. Correlation analysis.
c. Pareto analysis.
d. Ishikawa diagrams.
6. If data are plotted over time, the resulting chart will be a
a. Run chart
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 2
b. Histogram
c. Pareto chart
d. Poisson distribution
7. To determine who are or might be customers for a specific process, it would be most useful to create a
a. Pareto chart
b. Flow diagram
c. Cause and effect diagram
d. Scatter diagram
8. A production line uses signs at specific points on the line to indicate when components or raw materials
need to be replenished. The practice is an example of
a. Kanban
b. Poka-yake
c. Checkpoints
d. Hoshin
9. Which of the following is a good tool for planning cycle time reduction and concurrent operations?
a. A timeline
b. A Pareto diagram
c. An X and R chart
d. A PERT chart
10. Attribute and variable data are best described as which of the following? Attribute variable
a. Counted values measured values
b. Counted values visual features
c. Measured values counted values
d. Visual features counted values
11. All of the following are common ways for people to react to conflict EXCEPT
a. Competing
b. Collaborating
c. Avoiding
d. Sabotaging
12. A quality manager has chosen to survey customer satisfaction by talking samples based on the
categories of frequency of use, categories of use, and demographic. This technique is known as
a. Random sampling
b. Data collection
c. Stratification
d. Customer classification
13. Which of the following actions is Not used to reduce process cycle time?
a. Analyzing current processes
b. Reducing queue times
c. Setting priorities
d. Implementing activity-based costing
14. A company’s accounts payable department is trying to reduce the time between receipt and payment
of invoices and has recently completed a flowchart. Which of the following tools would be the for them to
use next?
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 3
a. Fishbone diagram
b. Scatter diagram
c. Box and whisker plat
d. Histogram
15. In a manufacturing company, the machine shop is what kind of customer in relation to the human
resource department?
a. Intermediate
b. Hidden
c. External
d. Internal
16. The primary purpose of a project charter is to
a. Subdivide the project into smaller, more manageable components
b. Provide management with a tool for selecting a project that addresses business needs
c. Provide management with a tool to ensure that project deadlines are met
d. Provide the project manager with authority to apply organizational resources to project activities
17. Sample selection of parts for inspection must be selected at random to ensure
a. A minimum sample size.
b. The probability of not rejecting the lot
c. The probability of accepting the lot
d. Finding typical characteristics of the lot.
18. Which of the following are bases for establishing calibration intervals?
I. Stability
II.Purpose
III.Degree of usage
a. I and II only
b. I and III only
c. II and III only
d. I, II, and III
19. Specification limits are derived from which of the following?
a. Process capability studies
b. Process control charts
c. Customer requirements
d. Historical data
20. The primary purpose of a control chart is to
a. Set Specifications and tolerances
b. compare operations.
c. Determine the stability of a process.
d. Accept or reject a lot of material
21. When a control chart is used on a new process, capability can be assessed at which of the following
times?
a. Before the chart is first started
b. After the first ten points are plotted
c. When the plotted points hug the centerline
d. After the process is shown to be in control
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 4
22. Precision is best described as
a. A comparison to a known standard
b. The achievement of expected outgoing quality
c. The repeated consistency of results
d. The difference between an average measurement and the actual value
23. The overall ability of two or more operators to obtain Consistent results repeatedly when measuring
the same set of parts and using the same measuring equipment is the definition of
a. Repeatability
b. Precision
c. Reproducibility
d. Accuracy
24. Which of the following conditions must be met for a process to be in a state of statistical control?
a. Most of the product out by the process is in specification.
b. All subgroup averages and rang are within control limits.
c. All variation has been completely removed
d. Previously optimal process settings are used.
25. Which of the following measures of dispersion is equal to the sum of deviations from the mean
squared divided by the sample size?
a. Range
b. Standard deviation
c. Variance
d. Mode
26. An X and R chart is used to
a. Indicate process variation
b. Specify design Limits
c. Interpret costs
d. Identify customer expectations
27. Which of the following is the most useful graphical tool for promoting an understanding of process
capability?
a. A flowchart
b. a histogram
c. An affinity diagram
d. An Ishikawa diagram
28. The type of chart that presents the value of items in descending order is a
a. Histogram
b. Pareto chart
c. U chart
d. Cusum chart
29. Measures of which of the following provide attributes data?
a. Temperature in degrees
b. Attendance at meetings
c. Weight in pounds
d. Length in metric units
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 5
30. The fraction of nonconforming products is plotted on which of the following types of control chart?
a. P chart
b. U chart
c. Np chart
d. C chart
31. A cause and effect diagram is a useful tool for doing which of the following?
a. Determining the flow of a process
b. Detecting shifts in a process
c. Developing theories based on symptoms
d. Arranging theories by defect count
32. Which of the following statistics would best describe the central tendency of a sample of data?
a. Mode
b. Mean
c. Standard deviation
d. Range
33. Which of the following types of tools or techniques is considered qualitative?
a. Histogram
b. Frequency distributions
c. Pareto chart
d. Process observations
34. Which of the following techniques is most useful in narrowing issues and limiting discussion?
a. Brainstorming
b. Quality function deployment
c. Cause and effect analysis
d. Mutilating
35. In statistics, an estimation error that is persistent or systematic is called
a. Bias
b. Sensitivity
c. Random
d. Shift
36. A customer satisfaction survey used the following rating scale:
1= very satisfied
2= Satisfied
3= Neutral
4= dissatisfied
5= very dissatisfied
This is an example of which of the following measurement scales?
a. Nominal
b. Ordinal
c. Ratio
d. Interval
37. Which of the following techniques is used in identifying underlying problems?
a. Cause and effect analysis
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 6
b. Prioritization matrix
c. Force field analysis
d. Pareto analysis
38. For a normal distribution, two standard deviation on each side of the mean would include what
percentage of the total population
a. 47%
b. 68%
c. 95%
d. 99%
39. In measurement system analysis, which of the following pairs of data measures is used to determine
total variance?
a. Process variance and reproducibility
b. Noise system and repeatability
c. Measurement variance and process variance
d. System variance and bias
40. Process data being used in the initial set-up of a process are assumed have a normal distribution. If the
nominal (target) is at the center of the distribution, and the specification limits are set at = 3 from the
center the Cpk is equal to
a. -0.25
b. 1.00
c. 1.33
d. 1.67
41. A green belt is going to monitor the number of defects on different size samples. Which of the
following control chart would be most appropriate?
a. u
b. np
c. c
d. p
42. Correction, over-production, inventory, and motion are all examples of
a. waste
b. 5S target areas
c. Noise
d. Value-added activities
43. The primary factor in the successful implementation of six sigma is to have
a. The necessary resources
b. The support/leadership of top management
c. Explicit customer requirements
d. A comprehensive training program
44. Which of the following types of variation is LEAST likely to occur in sequential repetitions of a
process over a short period of time?
a. Cyclical
b. Positional
c. Temporal
d. Seasonal
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 7
45. The primary reason that most companies implement six sigma is to
a. Reduce defects
b. Improve Processes
c. Improve profit
d. Increase customer satisfaction
46. The term used to describe the risk of a type I error in a test of hypotheses is
a. Power
b. Confidence level
c. Level of significance
d. Beta risk
47. One characteristic of attributes data is that it is always
a. continuous
b. Discrete
c. Expensive to collect
d. Read from a scale of measurement
48. Which of the following tests may be used to determine whether a sample comes from a population
with an exponential distribution?
a. T
b. F
c. Chi-square
d. ANOVA
49. Which of the following tools are appropriate for a quality engineer to use in qualifying a process that
has variable data?
I. An and R control chat
II. A his to gram
III. A cc hart
IV. A p chart
a. I and II only
b. II and III only
c. III and IV only
d. I, II, and IV only
50. The correlation coefficient for the length and weight of units made by a process is determined to be
0.27. if the process were adjusted to reduce the weight of each unit by 0.5 ounce, the correlation
coefficient of the length and weight of the units made by the new process would be equal to
a. 0.50
b. 0.27
c. 0.23
d. -0.23
51. A form, in either diagram or table format, that is prepared in advance for recording data is known as a
a. Cause-and-effect diagram
b. Pareto chart
c. Flowchart
d. Check sheet
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 8
52. A major drawback of using histogram in process control is that they
a. do not readily account for the factor of time
b. Are relatively difficult to construct and interpret
c. Require too many data points
d. Require too many intervals
53. Which of the following tools would be of the greatest use for finding the most efficient path and
realistic schedule for the completion of a project?
a. Interrelationship diagram
b. Activity network diagram
c. Tree diagram
d. Affinity diagram
54. A control plan is designed to do which of the following?
a. Supplement information contained in operator instructions
b. Support the production scheduling system
c. Provide a documented system for controlling processes
d. Provide a method for tracking the design review process
55. To determine the average number of nonconforming parts over time, which of the following attribute
control chart would be most appropriate?
a. A chat
b. Np chart
c. P chart
d. U chat
56. Which of the following techniques is most appropriate for generating continuous improvement ideas?
a. Tree diagram
b. Brainstorming
c. Prioritization matrix
d. Interrelationship diagraph
57. Which of the following tools is used extensively quality function deployment (QFD)?
a. Affinity diagram
b. Matrix diagram
c. Cause and effect diagram
d. Activity network diagram
58. Which of the following tools is most likely to be organizing a list of ideas generated during a
brainstorming session?
a. Activity network diagram
b. Affinity diagram
c. Histogram
d. Process control chart
59. Which of the following tools would be most appropriate for collecting data to study the symptoms of
a problem?
a. A check sheet
b. A flow diagram
c. A force field analysis
d. An activity network diagram
Examination Paper of Six Sigma Green Belt
IIBM Institute of Business Management 9
60. Kaizen is defined as
a. Re-engineering
b. Lean manufacturing
c. Continuous improvement
d. Error –proofing
61. The LEAST informative of the four measurement scales is the
a. Ratio
b. Nominal
c. Ordinal
d. Interval
62. Which of the following can used to determine the goodness of fit of a distribution to a data set?
a. T test
b. ANOVA
c. F rest

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