Six Sigma Black Belt Exam - May 24
Instructions:
(Pass Percentage: 50%)
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If alpha= 5%, beta= 10%, then probability of Type I error is:
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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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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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Name three Six Sigma tools you would use to develop a change management plan
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Which of the following test is a test for special cause in np chart?
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Project risk analysis includes risks due to:
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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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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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The Lean terminology "Poka-Yoke" refers to:
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The acronyms DMADV and IDOV stand for ____________________ and ___________________
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According to John Kotter, the most common reason for project failure is:
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Correlation causation.
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Which of the following is used to explore cause and effect relationship?
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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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If X andY are perfectly correlated, the most appropriate inference is
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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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The main deliverable of the Improve phase 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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The tool used to translate VOC into customer requirements is:
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A project that spans different boundaries is likely to have the following challenges:
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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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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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Which of the following is TRUE
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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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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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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 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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The metrics used to track organizational performance should include:
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The person who would validate the financials at the end of the project is:
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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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The person responsible for the overall success of the Six Sigma program within a company is:
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The reason we need to recheck measurement system capaqitity in the C phase is because:
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The financial benefits computed at the end of the project must:
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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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Some of the Six Sigma tools that can be used to generate potential solutions are: _
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Which tool would you use to find restrainers and drivers to change?
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For a measurement system whose output is shown in the table, is the over all gage acceptable ?
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Which presentation method should not be used for project completion review?
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Select the right Six Sigma tool that can help determination of a project timeline:
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The determination of population confidence intervals based on sample data is called _statistics.
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The person responsible for leading a project and solve problems is:
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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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The 8th waste in Lean is usually referred to:
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The Voice of the Customer data collection method "Survey" refers to:
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Customers, as defined in a Six Sigma project can be:
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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 "Define" phase, which tool highlights the problem and goal statement
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The purpose of gap analysis in the Analyze phase is to:
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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 rational subgroup ensures that there is variation within the subgroup and _ variation between subgroups.
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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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Select the most appropriate tool to ensure that the process is in control:
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What is the path for Attribute Measurement System analysis in Minitab Statistical Software?
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The terminology "Groupthink" refers to:
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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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Failure Modes and Effects Analysis (FMEA) prioritizes risks based on RPN scores. Which of the following has the highest risk
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In a project completion presentation, Senior Management is most interested in
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Which Six Sigma tool would you use to identify internal and external customers?
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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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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.
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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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Milestone reviews for Six Sigma projects should be conducted:
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A Six Sigma project objective must be SMART. The acronym SMART stands for:
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At the conclusion of the project, the project hand-off meeting should include:
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The unquestioned acceptance to the team's solution is called:
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The 5 Why's analysis for root cause analysis stands for:
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Communication of project recommendations must try to include the following form/s of delivery:
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In order to determine experimental error, it is better to do which of the following:
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The difference between the average measurements with respect to the true value is called:
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For a test with alpha= 0.02 and beta = O.O5, the following is true:
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In which survey method are respondents more likely to believe that their answers will be anonymous?
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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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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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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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Which tool can be used for selecting the right or best solution from a list of potential solutions:
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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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For the Pareto analy is, pick the right inference below:
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The person or persons responsible for selection and approval of Six Sigma projects are:
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The project charter element "Opportunity Statement" most closely is associated with which of the following:
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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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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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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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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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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 responsibility for ongoing control of the improved process rests with:
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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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Which tool would you use to determine the vital few from the trivial many:
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The_______________ limits are determined by the customer
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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 Lean tool TPM stands for:
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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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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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Select the right Six Sigma tool that can help with grouping similar ideas together to form themes:
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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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One of the Lean tools that is used to make small continuous improvements in the workplace is called:
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Which data set has the most amount of information contained within it?
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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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The main deliverables of the Control phase are:
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What is the purpose of secondary metrics?
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Which of the following savings can be traced directly to the company's bottom line
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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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If process improvements by DMAIC are not sufficient, then we would use _
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Replication of Six Sigma project implies:
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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 perfect normal distribution, we observe that
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The main deliverable of the Measure Phase is:
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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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A is one who would authorize the launch of the project and provide resources to work on the project.
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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 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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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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The primary purpose of lessons learned document is to:
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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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Select the most appropriate tool to identify the viewpoints of people who may impact or be impacted by change:
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A rational subgroup ensures that there is--- --variation within the subgroup and --- -----_ variation between subgroups.
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is considered the father of Six Sigma
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Suppliers of inputs and customers of output can be displayed using
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The resolution of the instrument doing the calibration should be at most:
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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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Process maps should be developed _
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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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Which approach would you use to facilitate a team that is in the "Storm" stage?
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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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Competitive Benchmarking can be used to enable change within a company when:
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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 are some mechanisms to conrol stakeholders on a project?
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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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A Latin Square design is useful when we want to do which of the following;
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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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Which of the following is NOT a deliverable of,Analyse Phase?
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Lean focuses on _______________ reduction while Six Sigma focuses on _________________ reduction
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Six Sigma can be described by theories such as focus, driven, of variation, and methodologies.
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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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In order to facilitate organizational change using Six Sigma, which of the following is NOT likely to be a key responsibility of senior management:
Your score is