Six Sigma Black Belt Exam - Feb


(Pass Percentage: 50%)

  • This question paper consists of multiple-choice questions. Each question carries 1point. There is no negative marking.
  • Each question has only one correct response. In case more than one response seems feasible, pick the best possible answer.
  • Candidates are requested to keep their Web-Camera Switched-On throughout the Assessment.
  • This is an open-book exam and you may use any printed material, PDF files provided to you, or any statistical analysis software on your computer. Reference to online resources is prohibited.

1 / 134

For a 1-Sample Z test if alpha= 5%, power= 50%, standard deviation= 2.5, and the difference to be detected (Delta) = 1  , determine the appropriate sample size for this test:

2 / 134

The first step in John Kotter's 8 step change management principles is                                         . The Six Sigma tool that can help implement this is-------:----

3 / 134

In order to determine experimental error, it is better to do which of the following:

4 / 134

The person responsible for leading a project and solve problems is:

5 / 134

            is considered the father of Six Sigma

6 / 134

The person or persons responsible for selection and approval of Six Sigma projects are:

7 / 134

If we are comparing the measure of location/measure of central tendency of two populations and one of the population data are not normally distributed, the appropriate test to use would be:

8 / 134

Keep needed items in the correct place to allow for easy and immediate retrieval refers to

9 / 134

A brainstorming exercise provides 6 ideas {A, B, C, D, E, and F). In order to determine the best idea, multi-voting is done by three individuals. The selected ideas by the people are Person 1{C, D, A), Person 2 {B, C, F), and Person 3 (F, D, C). Which idea should be selected based on this voting:

10 / 134

The reason we need to recheck measurement system capaqitity in the C phase is because:

11 / 134

Select the most appropriate tool to ensure that the process is in control:

12 / 134

In "Define" phase, which tool highlights the problem and goal statement

13 / 134

The light indicator on a car dashboard that blinks to show that the driver is not wearing his seatbelt is an example of which Poka-Yoke concept:

14 / 134

Central Limit Theorem states that if we take several sets of data from a uniformly distributed population and average those, then the averaged data sets follow a   distribution.

15 / 134

All of the following are approaches you would use to ensure that your teams were productive  EXCEPT:

16 / 134

Which project would you select to be launched if preliminary calculations for Net Present Value (NPV) are as indicated:

17 / 134

In order to facilitate organizational change using Six Sigma, which of the following is NOT  likely to be a key responsibility of senior management:

18 / 134

If process improvements by DMAIC are not sufficient, then we would use _

19 / 134

A rational subgroup ensures that there is--- --variation within the subgroup and  ---  -----_ variation between subgroups.

20 / 134

Which of the following savings can be traced directly to the company's bottom line

21 / 134

The acronyms DMADV and IDOV stand for ____________________ and ___________________

22 / 134

The Voice of the Customer data collection method "Survey" refers to:

23 / 134

The determination of population confidence intervals based on sample data is called          _statistics.

24 / 134

Green Bellt projects are more suitable for processes that span                                          functional areas, while Black Belt projects are more suitable for processes that span                                                            functional areas.

25 / 134

            is one who may not attend all the meetings but would contribute on an as-needed basis

26 / 134

The project charter element "Opportunity Statement" most closely is associated with which of the following:

27 / 134

If we have known nuisance factors and unknown noise factors that could affect our design of experiment, then the best way to tackle this is to do which of the following:

28 / 134

The_______________            limits are determined by the customer

29 / 134

Power of a test

30 / 134

If the regression equation is given as Water (It)= -5.28 + 1.98 Salt content (gm). What is the predicted value for Water (It) when the Salt content is 10 gm?

31 / 134

Which of the following test is a test for special cause in np chart?

32 / 134

The person who would validate the financials at the end of the project is:

33 / 134

If A and Bare two mutually exclusive events, then the probability of both A and B occurring, P(AחB), is equal to:

34 / 134

Comparing the Sigma levels for ZENTITLEMENT, ZGOAL, ZLT, and ZST assuming they are all different, we can usually conclude that:

35 / 134

Milestone reviews for Six Sigma projects should be conducted:

36 / 134

Which data set has the most amount of information contained within it?

37 / 134

The metrics used to track organizational performance should include:

38 / 134

Which of the following is a tool that may be used to scope a project and outline boundaries of the project?

39 / 134

For the given data set, use a software or calculate by hand the measures of central tendency, mean and median:

0,1,2,3,4,5,6, 7,8,9,10

40 / 134

In a process, if there are 10 defectives out of 100\units sampled, then the process yield is:

41 / 134

The resolution of the instrument doing the calibration should be at most:

42 / 134

Which tool would you use to determine the vital few from the trivial many:

43 / 134

If the average DPU = 0.5, find out DPMO (Defects per Million opportunities) using the Poisson's approximation.

44 / 134

If alpha= 5%, beta= 10%, then probability of Type I error is:

45 / 134

What is the most important Critical Success Factor that will help overcome some of the organizational roadblocks (like lack of  resources etc)

46 / 134

The Lean terminology "Poka-Yoke" refers to:

47 / 134

At the conclusion of the project, the project hand-off meeting should include:

48 / 134

Which presentation method should not be used for project completion review?

49 / 134

30 cars with engine oil A were driven for 120 kms and mileage was recorded. Engine oil was replaced in these cars with engine oil B. The cars were driven again for 120 kms and mileage was recorded. All other external conditions were same. What is the most appropriate test that can be carried out to analyse whether engine oil A is more effective than engine oil Bin improving mileage?

50 / 134

Identify which of the following variables is/are continuous: i) Transaction Processing time ii)% of defectives in a month, iii) Customer Satisfaction Ratings, iv) Number of road accidents

51 / 134

For a test with alpha= 0.02 and beta = O.O5, the following is true:

52 / 134

In an FMEA analysis, the severity is calculated as 5, occurrence is 8 and detection is 4. What is the calculated RPN (Risk Priority Number) score?

53 / 134

The difference between the average measurements with respect to the true value is called:

54 / 134

Name three Six Sigma tools you would use to develop a change management plan

55 / 134

Replication of Six Sigma project implies:

56 / 134

The unquestioned acceptance to the team's solution is called:

57 / 134

When you have brainstormed and come up with several ideas which technique would you use to narrow down the list using a secret ballot process:

58 / 134

The purpose of gap analysis in the Analyze phase is to:

59 / 134

In which survey method are respondents more likely to believe that their answers will be anonymous?

60 / 134

Competitive Benchmarking can be used to enable change within a company when:

61 / 134

Which tool would you use to find restrainers and drivers to change?

62 / 134

Six Sigma can be described by theories such as              focus,      driven,    of variation, and methodologies.

63 / 134

A Six Sigma project objective must be SMART. The acronym SMART stands for:

64 / 134

The resource whose roles & responsibilities most closely match a person who takes over the project after project completion  is:

65 / 134

If we have defects data and the subgroup size is varying, then the appropriate control chart to use would be:

66 / 134

If the null hypothesis is true in reality but we conclude that the null hypothesis is false based on our analysis, we/ are making the following error:

67 / 134

For the given data set, construct a frequency diagram (histogram) and visually determine if it follows a normal distribution: 1111122 2 2 2 3 3 3 3 3 4 4 4 4 4 5 55 55

68 / 134

What is the path for Attribute Measurement System analysis in Minitab Statistical Software?

69 / 134

The main deliverables of the Control phase are:

70 / 134

The following approaches can be used to motivate, sustain and support the participation and commitment of team members EXCEPT?

71 / 134

Some of the Six Sigma tools that can be used to generate potential solutions are:    _

72 / 134

The tool used to translate VOC into customer requirements is:

73 / 134

Which tool can be used to narrow down the scope of a problem so that the project may focus on one CTQ

74 / 134

Communication of project recommendations must try to include the following form/s of delivery:

75 / 134

According to John Kotter, the most common reason for project failure is:

76 / 134

The primary purpose of lessons learned document is to:

77 / 134

The person responsible for the overall success of the Six Sigma program within a company is:

78 / 134

In a perfect normal distribution, we observe that

79 / 134

A project that spans different boundaries is likely to have the following challenges:

80 / 134

The responsibility for ongoing control of the improved process rests with:

81 / 134

A customer states that "f waited for hours to purchase a train ticket". This VOC (voice of customer) could potentially relate to which of the following CTQ's (Critical to Quality):

82 / 134

If we conduct a fractional factorial design and have a Resolution IV design, then which of the following is true:

83 / 134

The terminology "Groupthink" refers to:

84 / 134

If the upper specification limit= 12, lower specification limit= 0, and the process estimated standard deviation = 2, then the Cp calculated as:

85 / 134

What are some challenges of working on processes that are cross-functional in nature? i) Projects can require significant change management effort & may fail, ii) Projects may take longer to get completed.

86 / 134

Calculate the probability value for the continuous\variable X having a value less than 5 when the data comes from a normally distributed population with mean = 15, and standard deviation= 5.

87 / 134

Failure Modes and Effects Analysis (FMEA) prioritizes risks based on RPN scores. Which of the following has the highest risk

88 / 134

A                                is one who would authorize the launch of the project and provide resources to work on the project.

89 / 134

Which of the following is NOT a deliverable of,Analyse Phase?

90 / 134

Process maps should be developed                                  _

91 / 134

Select the most appropriate tool to identify the viewpoints of people who may impact or be impacted by change:

92 / 134

Select the right Six Sigma tool that can help with grouping similar ideas together to form themes:

93 / 134

What are some mechanisms to conrol stakeholders on a project?

94 / 134

Correlation             causation.

95 / 134

The Six Sigma approach we would use to improve an existing process is called                         and the approach we would use for designing new processes is called                                              _

96 / 134

In a Pull system, the signal used to convey information upstream to make more products is called:

97 / 134

Projects impact customers by primarily impacting three CTQ's. Where the CTQ's stand for Critical to  -----'   Critical to------------------  , and Critical to            _

98 / 134

Which tool can be used for selecting the right or best solution from a list of potential solutions:

99 / 134

It is important to pilot solutions before full scale implementation because: i) It can identify problems and enable fixes before mass rollout, ii) it can help us identify critical inputs iii) It can reduce risks of bad solutions, iv) It can reduce costs and time to deploy solutions

100 / 134

What is the purpose of secondary metrics?

101 / 134

If it is not practical to do measurement systems analysis in fields such as marketing, sales etc., which tool can be used to validate the measurement system?

102 / 134

One of the Lean tools that is used to make small continuous improvements in the workplace is called:

103 / 134

The 8th waste in Lean is usually referred to:

104 / 134

In a project completion presentation, Senior Management is most interested in

105 / 134

In order to make a process continuous flow, we require that each step in the process:

106 / 134

The 5 Why's analysis for root cause analysis stands for:

107 / 134

Which approach would you use to facilitate a team that is in the "Storm" stage?

108 / 134

The main deliverable of the Improve phase is:

109 / 134

For the Pareto analy is, pick the right inference below:

110 / 134

Select the team stage that best matches the characteristic "Members are enthusiastic  and excited to be a part of the team"

111 / 134

Which of the following is TRUE

112 / 134

In an FMEA analysis, the severity is calculated as 5, occurrence is 8 and detection is 4. What is the calculated score?

113 / 134

In order to make the Standard Operating Procedure (SOP) effective, we must have all of the following EXCEPT:

114 / 134

Customers, as defined in a Six Sigma project can be:

115 / 134

The relationship Y = f(x) implies that variation in the            has an impact on the   ,which  in turn has an impact on customer satisfaction.

116 / 134

Project risk analysis includes risks due to:

117 / 134

The Lean tool TPM stands for:

118 / 134

If only short-term data is available, then the sigma level calculated based on this data is related to .the long-term data using the relationship ZLT = ZST +                                                       .

119 / 134

A Latin Square design is useful when we want to do which of the following;

120 / 134

Determine the number of replications required for a 3-factor 2-level full factorial design to achieve a power of 90% with a confidence level of 95%, when we are interested in detecting a difference of 1 when the standard deviation is 0.5

121 / 134

Using a statistical software to check for the normality of the given data: 1, 2, 1, 5, 4, 6, 4, 3, 2, 1, 2, 4, 5, 1, 2. The computed Anderson-Darling Normality test p-value is:

122 / 134

The financial benefits computed at the end of the project must:

123 / 134

For a process with a lower specification limit= 18 and upper specification limit= 24. The process has a mean of 20 and a within standard deviation= 1and an overall standard deviation= 2. For this process, the calculated Pp is _________

124 / 134

If an experiment has 20 factors that could potentially impact the final output Y, then the appropriate test to run would be:

125 / 134

Which Six Sigma tool would you use to identify internal and external customers?

126 / 134

Suppliers of inputs and customers of output can be displayed using

127 / 134

A rational subgroup ensures that there is        variation within the subgroup and      _ variation between subgroups.

128 / 134

Lean focuses on _______________ reduction while Six Sigma focuses on _________________ reduction

129 / 134

Which of the following is used to explore cause and effect relationship?

130 / 134

Select the right Six Sigma tool that can help determination of a project timeline:

131 / 134

If X andY are perfectly correlated, the most appropriate inference is

132 / 134

The main deliverable of the Measure Phase is:

133 / 134

For a hypothesis test comparing the performance of two employees, the P value< 0.05 and the difference in performance amounts to a difference of less than $1 per year. Then, the following would be true:

134 / 134

Identify which of the following variables are continuous: i) Temperature, ii)% of defectives in a month, iii) Customer Satisfaction Ratings, iv) Number of road accidents.

Your score is