Six Sigma Black Belt Exam - Feb
Instructions:
(Pass Percentage: 50%)
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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:
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The first step in John Kotter's 8 step change management principles is . The Six Sigma tool that can help implement this is-------:----
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In order to determine experimental error, it is better to do which of the following:
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The person responsible for leading a project and solve problems is:
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is considered the father of Six Sigma
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The person or persons responsible for selection and approval of Six Sigma projects are:
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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:
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Keep needed items in the correct place to allow for easy and immediate retrieval refers to
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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:
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The reason we need to recheck measurement system capaqitity in the C phase is because:
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Select the most appropriate tool to ensure that the process is in control:
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In "Define" phase, which tool highlights the problem and goal statement
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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:
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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.
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All of the following are approaches you would use to ensure that your teams were productive EXCEPT:
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Which project would you select to be launched if preliminary calculations for Net Present Value (NPV) are as indicated:
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In order to facilitate organizational change using Six Sigma, which of the following is NOT likely to be a key responsibility of senior management:
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If process improvements by DMAIC are not sufficient, then we would use _
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A rational subgroup ensures that there is--- --variation within the subgroup and --- -----_ variation between subgroups.
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Which of the following savings can be traced directly to the company's bottom line
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The acronyms DMADV and IDOV stand for ____________________ and ___________________
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The Voice of the Customer data collection method "Survey" refers to:
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The determination of population confidence intervals based on sample data is called _statistics.
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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.
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is one who may not attend all the meetings but would contribute on an as-needed basis
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The project charter element "Opportunity Statement" most closely is associated with which of the following:
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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:
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The_______________ limits are determined by the customer
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Power of a test
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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?
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Which of the following test is a test for special cause in np chart?
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The person who would validate the financials at the end of the project is:
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If A and Bare two mutually exclusive events, then the probability of both A and B occurring, P(AחB), is equal to:
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Comparing the Sigma levels for ZENTITLEMENT, ZGOAL, ZLT, and ZST assuming they are all different, we can usually conclude that:
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Milestone reviews for Six Sigma projects should be conducted:
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Which data set has the most amount of information contained within it?
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The metrics used to track organizational performance should include:
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Which of the following is a tool that may be used to scope a project and outline boundaries of the project?
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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
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In a process, if there are 10 defectives out of 100\units sampled, then the process yield is:
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The resolution of the instrument doing the calibration should be at most:
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Which tool would you use to determine the vital few from the trivial many:
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If the average DPU = 0.5, find out DPMO (Defects per Million opportunities) using the Poisson's approximation.
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If alpha= 5%, beta= 10%, then probability of Type I error is:
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What is the most important Critical Success Factor that will help overcome some of the organizational roadblocks (like lack of resources etc)
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The Lean terminology "Poka-Yoke" refers to:
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At the conclusion of the project, the project hand-off meeting should include:
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Which presentation method should not be used for project completion review?
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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?
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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
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For a test with alpha= 0.02 and beta = O.O5, the following is true:
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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?
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The difference between the average measurements with respect to the true value is called:
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Name three Six Sigma tools you would use to develop a change management plan
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Replication of Six Sigma project implies:
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The unquestioned acceptance to the team's solution is called:
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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:
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The purpose of gap analysis in the Analyze phase is to:
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In which survey method are respondents more likely to believe that their answers will be anonymous?
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Competitive Benchmarking can be used to enable change within a company when:
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Which tool would you use to find restrainers and drivers to change?
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Six Sigma can be described by theories such as focus, driven, of variation, and methodologies.
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A Six Sigma project objective must be SMART. The acronym SMART stands for:
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The resource whose roles & responsibilities most closely match a person who takes over the project after project completion is:
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If we have defects data and the subgroup size is varying, then the appropriate control chart to use would be:
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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:
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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
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What is the path for Attribute Measurement System analysis in Minitab Statistical Software?
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The main deliverables of the Control phase are:
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The following approaches can be used to motivate, sustain and support the participation and commitment of team members EXCEPT?
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Some of the Six Sigma tools that can be used to generate potential solutions are: _
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The tool used to translate VOC into customer requirements is:
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Which tool can be used to narrow down the scope of a problem so that the project may focus on one CTQ
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Communication of project recommendations must try to include the following form/s of delivery:
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According to John Kotter, the most common reason for project failure is:
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The primary purpose of lessons learned document is to:
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The person responsible for the overall success of the Six Sigma program within a company is:
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In a perfect normal distribution, we observe that
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A project that spans different boundaries is likely to have the following challenges:
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The responsibility for ongoing control of the improved process rests with:
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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):
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If we conduct a fractional factorial design and have a Resolution IV design, then which of the following is true:
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The terminology "Groupthink" refers to:
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If the upper specification limit= 12, lower specification limit= 0, and the process estimated standard deviation = 2, then the Cp calculated as:
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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.
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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.
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Failure Modes and Effects Analysis (FMEA) prioritizes risks based on RPN scores. Which of the following has the highest risk
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A is one who would authorize the launch of the project and provide resources to work on the project.
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Which of the following is NOT a deliverable of,Analyse Phase?
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Process maps should be developed _
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Select the most appropriate tool to identify the viewpoints of people who may impact or be impacted by change:
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Select the right Six Sigma tool that can help with grouping similar ideas together to form themes:
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What are some mechanisms to conrol stakeholders on a project?
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Correlation causation.
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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 _
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In a Pull system, the signal used to convey information upstream to make more products is called:
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Projects impact customers by primarily impacting three CTQ's. Where the CTQ's stand for Critical to -----' Critical to------------------ , and Critical to _
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Which tool can be used for selecting the right or best solution from a list of potential solutions:
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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
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What is the purpose of secondary metrics?
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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?
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One of the Lean tools that is used to make small continuous improvements in the workplace is called:
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The 8th waste in Lean is usually referred to:
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In a project completion presentation, Senior Management is most interested in
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In order to make a process continuous flow, we require that each step in the process:
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The 5 Why's analysis for root cause analysis stands for:
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Which approach would you use to facilitate a team that is in the "Storm" stage?
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The main deliverable of the Improve phase is:
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For the Pareto analy is, pick the right inference below:
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Select the team stage that best matches the characteristic "Members are enthusiastic and excited to be a part of the team"
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Which of the following is TRUE
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In an FMEA analysis, the severity is calculated as 5, occurrence is 8 and detection is 4. What is the calculated score?
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In order to make the Standard Operating Procedure (SOP) effective, we must have all of the following EXCEPT:
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Customers, as defined in a Six Sigma project can be:
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The relationship Y = f(x) implies that variation in the has an impact on the ,which in turn has an impact on customer satisfaction.
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Project risk analysis includes risks due to:
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The Lean tool TPM stands for:
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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 + .
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A Latin Square design is useful when we want to do which of the following;
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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
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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:
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The financial benefits computed at the end of the project must:
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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 _________
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If an experiment has 20 factors that could potentially impact the final output Y, then the appropriate test to run would be:
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Which Six Sigma tool would you use to identify internal and external customers?
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Suppliers of inputs and customers of output can be displayed using
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A rational subgroup ensures that there is variation within the subgroup and _ variation between subgroups.
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Lean focuses on _______________ reduction while Six Sigma focuses on _________________ reduction
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Which of the following is used to explore cause and effect relationship?
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Select the right Six Sigma tool that can help determination of a project timeline:
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If X andY are perfectly correlated, the most appropriate inference is
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The main deliverable of the Measure Phase is:
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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:
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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