Six Sigma Black Belt Exam - May 24


(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 / 135

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 _________

2 / 135

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

3 / 135

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

4 / 135

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

5 / 135

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

6 / 135

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

7 / 135

What is the purpose of secondary metrics?

8 / 135

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

9 / 135

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:

10 / 135

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

11 / 135

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

12 / 135

Milestone reviews for Six Sigma projects should be conducted:

13 / 135

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

14 / 135

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

15 / 135

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

16 / 135

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

17 / 135

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

18 / 135

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

19 / 135

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.

20 / 135

The acronyms DMADV and IDOV stand for ____________________ and ___________________

21 / 135

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

22 / 135

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.

23 / 135

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

24 / 135

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

25 / 135

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

26 / 135

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

27 / 135

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

28 / 135

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:

29 / 135

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

30 / 135

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

31 / 135

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

32 / 135

Which of the following is TRUE

33 / 135

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

34 / 135

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:

35 / 135

The_______________            limits are determined by the customer

36 / 135

The Lean tool TPM stands for:

37 / 135

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

38 / 135

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

39 / 135

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

40 / 135

The Lean terminology "Poka-Yoke" refers to:

41 / 135

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                                              _

42 / 135

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

43 / 135

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

44 / 135

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

45 / 135

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

46 / 135

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.

47 / 135

The 8th waste in Lean is usually referred to:

48 / 135

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

49 / 135

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:

50 / 135

Correlation             causation.

51 / 135

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

52 / 135

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

53 / 135

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?

54 / 135

In a perfect normal distribution, we observe that

55 / 135

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

56 / 135

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

57 / 135

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

58 / 135

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

59 / 135

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

60 / 135

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

61 / 135

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

62 / 135

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

63 / 135

The tool used to translate VOC into customer requirements is:

64 / 135

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

65 / 135

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

66 / 135

The main deliverables of the Control phase are:

67 / 135

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

68 / 135

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

69 / 135

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

70 / 135

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:

71 / 135

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

72 / 135

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?

73 / 135

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

74 / 135

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

75 / 135

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.

76 / 135

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

77 / 135

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

78 / 135

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

79 / 135

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.

80 / 135

What are some mechanisms to conrol stakeholders on a project?

81 / 135

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:

82 / 135

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

83 / 135

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

84 / 135

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

85 / 135

For a measurement system whose output is shown in the table,  is the over all gage acceptable ?

86 / 135

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:

87 / 135

The terminology "Groupthink" refers to:

88 / 135

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

89 / 135

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

90 / 135

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

91 / 135

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

92 / 135

The main deliverable of the Measure Phase is:

93 / 135

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

94 / 135

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

95 / 135

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

96 / 135

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

97 / 135

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

98 / 135

The main deliverable of the Improve phase is:

99 / 135

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

100 / 135

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

101 / 135

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

102 / 135

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

103 / 135

Power of a test

104 / 135

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

105 / 135

Process maps should be developed                                  _

106 / 135

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 +                                                       .

107 / 135

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?

108 / 135

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

109 / 135

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:

110 / 135

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

111 / 135

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

112 / 135

            is considered the father of Six Sigma

113 / 135

Suppliers of inputs and customers of output can be displayed using

114 / 135

The primary purpose of lessons learned document is to:

115 / 135

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:

116 / 135

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

117 / 135

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

118 / 135

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

119 / 135

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

120 / 135

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

121 / 135

The metrics used to track organizational performance should include:

122 / 135

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

123 / 135

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

124 / 135

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

125 / 135

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

126 / 135

Replication of Six Sigma project implies:

127 / 135

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

128 / 135

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

129 / 135

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

130 / 135

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?

131 / 135

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

132 / 135

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

133 / 135

Project risk analysis includes risks due to:

134 / 135

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

135 / 135

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):

Your score is