Lean Six Sigma Session End Test Your email address: Start Quiz! 1. ______ is a method of sampling in which every unit has equal chance of being selected.Simple Random Sampling Stratified random sampling Systematic Sampling Cluster sampling 2. ______ is a graphical tool that has relationship with RegressionBox and whisker plotHistogramRaw data Scatter plot 3. _______ are estimates of experimental error obtained by subtracting the observed response from the predicted response.Residuals Assumptions Reproducibility Individuals 4. _______ is mistake proofing a process5 S Kanban Kaizen Poka-Yoke 5. ________ is a measure of the relationship between two or more variablesRegression Correlation Coefficent Linear Bi-modal 6. _________ is used to determine whether samples drawn from two different normally distributed populations have the same mean with a specified confidence levelF test chi square test 2 sample t testDOE 7. ___________ tests are used for Hypothesis testing when any one of the data set is not normally distributedANOVANon Parametric tests1 sample t testF test 8. A ______ is a disciplined procedure that enables you to anticipate failures, identify and prevent themSMEA Correlation FMEA Regression 9. A Black belt works on six sigma projects part timeTrueFalse 10. A defect is aconformance to specificationsRare process disease Something that the customer is willing to pay measurable characteristic not conforming to a customer requirement that costs money. 11. A statistical technique that is used to assess a measurement system isVariability Gage R&R Stability General audit 12. A non-parametric test where the null hypothesis states that the median of two populations is the same against an alternative hypothesis that states that a particular population tends to have larger values than the other. This is:Kruskal Wallis Test Mann-Whitney Test Mood’s Median Test Friedman’s Test 13. A scatter diagram is a graphic display of many XY coordinate data points which represent the relationship between two different variables. It is also referred to asCorrelation chart Fishbone diagram pareto chart Run chart 14. A typical linear regression equation would look likeY = 1.5 + 2x Y = 1.5 - 2x 1.5 = Y - 2x All of the options 15. A value stream mapping is a ------- toolStatistical Creative problem solvingQuality Lean 16. Achieving six sigma quality means your business isproducing 3.4 defects per million opportunities maximum producing 6210 defects per million opportunities producing 50,000 defects per million opportunities producing 10,000 defects per million opportunities 17. An FMEA is not a risk analysis toolTrueFalse 18. The business case in a project charter gives details onTangible benefitsIntangible benefitsA&B None of the above 19. Null Hypothesis is accepted if p>0.05TrueFalse 20. Business case helps to understandhow the project is linked with the overall business objectives. how to reduce cost of the department how the sales strategy will change in the new financial year how the project is linked with the overall profitability & growth plan. 21. Calculate median for data set 26, 33, 13, 11,11, 19,23,14,18,40,3919 18 23 11 22. In a Run chart, data points fluctuating up and down rapidly around the median indicatesShift Oscillations Mixtures Same Value 23. Delivering the product extremely fast results in increase in internal rejections. Reducing internal rejections is a part ofCost of Quality (COQ) Critical to Safety (CTS) Critical to Delivery (CTD) Critical to process (CTP) 24. Bell curve is the other name forFishbone diagram universal curve pareto chart Normal Distribution 25. GRR is a statistical tool used for Measurement system analysisTrueFalse 26. H0 is called as thesuper hypothesis null hypothesis alternate hypothesis unpredictable hypothesis 27. If both Y (output - dependent variable) and X (input - independent variable) variables are continuous, we perform aLogistic Regression Simple linear regression and/or a correlation analysis ANOVA Realistic Regression 28. If Y (output - dependent variable) is discrete and X (input - independent variable) variable is continuous, we perform a:Logistic Regression ANOVA Realistic Regression Simple linear regression and/or a correlation analysis 29. Normally distributed data has 95% data points between Mean+/- sigmaTrueFalse 30. Project charter is documented during Define phaseTrueFalse 31. In which case you will accept H0p=0.004 p<0.04p= 0.04 p = 0.40 32. In process mapping, which are the two key questions to ask for each single step?How many inputs are in this step? What happened prior to this step? Why do we do this step & how do we know that this is correct? what are the outputs of this step 33. In statistical process control, it is not necessary to maintain the order of productionTrueFalse 34. In the Control Phase of an LSS project, a Belt will identify key metrics that can be monitored and analyzed to give an indication that a process may be moving towards an out of spec condition. When he applies this approach he is using:Poisson Derivatives Inferential Statistics Kanban Analysis Statistical Process Control 35. In this type of regression there are multiple input variables and only one output variable. Multi Linear Regression Linear Regression Jack Welch was the first to initiate the Six Sigma methodology Larry Bossidy first initiated the Six Sigma methodology 36. It is a basic graphing tool that displays five points that represents the centering, spread and distribution of a set of continuous data.Scatter plot Box plot Histograms Dot plot 37. It is stated in Six sigma that product characteristics with six sigma process capabilities i.e. CPK > 3.4 are of world class performance i.e. CPK > 1.5 are of world class performance i.e. CPK > 0.5 are of world class performance i.e. CPK > 0.0 are of world class performance 38. Measurement system analysis (MSA) is usedto assess capability to validate the data used for analysis as an optional tool during the DMAIC process a no statistical assessment of the process 39. Mistake proofing is relatively expensive to installTrueFalse 40. Multi vari analysis is a graphical analysis technique used to identify and quantify dominant sources of variation in a process when the Y's are continuous and the X's under investigation are discreteTRUE FALSE Sometimes Maybe 41. n is equal to 1.96 divided by delta the whole square, p multiply by one minus p. This is:the sample size formula for inferential statistics the sample size formula for advanced statisticsthe sample size formula for discrete data the sample size formula for continuous data 42. Producing more products than required by the next process or making earlier than the required by the next process or customers. This is _______ in LeanInventory & Work in Process Correction Unnecessary process steps Overproduction 43. Rolled throughput yield isthe probability of getting through the entire process free of defects the percentage of units that finish without a defect out of the number of units started a means of calculating DPMO a means of calculating sigma level 44. Seiton meansstraighten steady steam stand 45. Server downtime would come under which if these in a FishboneMachine Material Man Methods 46. Six Sigma does not include customer requirementsTrueFalse 47. SMART stands for:"– Standardized – Measurable – Attainable – Relevant – Time Bound" "– Specific – Measurable – Attainable – Relevant – Time Bound" "– Specific – Mentor able – Attainable – Relevant – Time Bound" "– Specific – Measurable – Acceptable – Relevant – Time Bound" 48. Some considerations in the closing phase of the project may not includeIdentify the process ownerInvolve the team in the control plan Create new or updated work instructions and procedures Change the vendor resources 49. The control chart represents the process stability, once special causes have been identified and removed from the process.TrueFalse 50. The control plan must be a living document for it to remain an effective mechanism to:make profits monitor and control the process reduce cost measure the entire process 51. The control plan must show compliance and control before project closure.TrueFalse 52. The data with highest frequency is calledMean Median Mode Variance 53. The procedure employed in testing a hypothesis is strikingly similar to a court trial. That means thetwo parties must be represented by a lawyer necessity for a judge The hypothesis is that the defendant is presumed guilty until proven not guilty. The hypothesis is that the defendant is presumed not guilty until proven guilty. 54. The term "vital few" was first introduced byJoseph M Juran Vilfredo Pareto Nathan H Juran W. Edwards Deming 55. The X bar and R chart are used to control a process when the sample size is small and constant the sample size is large and constant the sample size not constant don’t know the sample size 56. Normal distribution is a probability distribution for continuous dataTrueFalse 57. Inferential statistics includeestimation of population parameterroot cause validation A & B Calculating summary values 58. ------- is a lean tool where cross functional team works for a week on improvementKaizenPoka yoke Value stream mapping Kaizen Blitz 59. Too many outliers can easily skew normally-distributed data. Outliers should only be removed if a specific cause of their extreme value is identified.TrueFalse 60. What does hypothesis testing fundamentally change?Its the departure from "I think" and "I feel" culture conclusions based on the data Removes non factual based process All of the options 61. What does RPN stand for?Risk Performance Number Risk Product Number Risk Priority Number Risk Process Number 62. What is standard deviation?a measure of variation a calculation formulae with mathematical implications an acceptable modification of a process a deviation to ensure all is correct 63. When would you reject Ho if alpha is 0.05If the p-value is < 0.05 If the p-value is > 0.05If the p-value is = 0.05 If the p-value is > 0.10 64. Which of the below is a special cause for delay in delivery of PizzaDelivery location distance Traffic Delivery process Bike breakdown 65. Which of the following is not a part of the Lean methodology under Waste Management?Delivery location distance Traffic Delivery process Bike breakdown 66. Which one of the following is not one among the mudas as per lean method?Correction inventory Motion Billing 67. Which tool is used to break problems down into bite-size pieces & displays many possible causes in a graphic manner?Pareto Ishikawa Run Chart Control Chart 68. Y = f(X), where X areindependent variables, outputs, Causes to be controlled dependent variables, outputs, Causes to be controlled independent variables, inputs, Causes to be controlled independent variables, inputs, Effects to be controlled 69. Which of the following is an assumption to test the reliability of the linear regression model?Regression p value is greater than 0.05Regression p value is less than 0.05 VIF value is >5 all Xa are normally distributed 70. ________ is a pull driven systemKaizen Kanban SMED Jidoka 71. Bias is Mean difference between the observed values and the true value Standard Deviation The difference between the observed value and the true value The difference between the true value and the observed value 72. If a process is operating at a 6 sigma level then the DPMO is?6 34 3.40.34 73. Who is the father of Six Sigma?Bill Smith Jack Welch Mikel Harry Bob Galvin 74. Which hypothesis test is used to check whether the population is normally distributed?Anderson t- test Jarque=Bera test 2 sample t testMarck willson test 75. The special cause variation is also called asComplex AssignableAttribute Long term 76. Deviations of measured values over time from the true value is termed as ________?Linearity Repeatability Bias Stability 77. Stability, Bias and Linearity define the __________ of a Measurement SystemSensitivity Accuracy Fishbone diagram 6M Diagram 78. If a hypothesis test shows a p-value of 0.28, but we see a practical difference, what could be the reasonSample size to large Quality of Questionnaires Human error in data collection Sample size too small 79. Which is not the basis for establishing the CTQsVOC What you think the customer wants Complaints Requirements 80. With MSA, we are concerned with Precision and _______ of the data to be collected.Reliability Sensitivity Variability Accuracy 81. Six Sigma methodology is used to identify and remove causes for _____________ .Process Variation Excess Inventory Customer complaints Sales Returns 82. Some of the sources of error that is observed during inferential Statistical Analysis are?Bias in sampling Errors in measurement Errors in sampling All of the above 83. Which tool is commonly used to help identify possible root causes after a fishbone diagram is constructed?Possible brainstorm 5 Why Analysis 4 How analysis Cross Function Analysis 84. The Control Plan can be closedAfter one year from the date of handover to process owner Never, a control plan must stay in place After three years from the date of handover to process owner After the project costs have been recouped 85. Which of the following is one of the key assumptions while doing a 2 sample t testThe variables are dependent Data is normally distributed Variances are unequal The underlying distribution is binomial 86. ________ delivers the input for the CTQ?process owner Customers Sponsor Suppliers 87. What is the coefficient in this regression formula: Length = 4.5 + 1.39 mass-1.39 -4.5 4.5 1.39 88. The element of the project charter giving details on the benefit to the organization isGoal statement ScopeProject budgetBusiness case 89. For a process to be at the 6 Sigma quality level, it must have?Cp >1.5 & Cpk >2.0 Cp >2.0 & Cpk >1.5 Cp & Cpk > 1.5 Cp & Cpk >2 90. ‘α’ is called the _______ for a hypothesis testingsignificance level abundance level confidence level sigma level 91. In gage terminology, “repeatability” is often a component ofAccuracy Reproducibility Precision Reproducibility 92. What does the +ve or –ve sign denote in correlation analysis? positive and negative earnings positive & negative intercepts the positive sign denotes way forward while the negative denotes the way backward The positive sign denotes direct correlation whereas the negative sign denotes inverse correlation. 93. Which one of the following is not one among the mudas as per lean method?Motion Repetition Wait Correction 94. The Greek letter “sigma” is used to signify _____________.Standard Deviation Numerical Average Data Spread Mean 95. The ________ metric is a critical measure, it’s the reason for your project.Secondary Primary 96. Mistake proofing is defined as…Find the reason (proof) of mistakes Making sure we discover when a defect occurs Using wisdom or ingenuity to create devices allowing 100% defect free steps 100% of the time Waste prevention 97. If you can Mistake Proof a defect out of the process entirely then you do not need use SPC on the characteristic of interest in the defect.TrueFalse 98. If a process has subgroups for Variable data the best pair of SPC Charts to use would be an Xbar and _________.Individuals Chart R Chart NP Chart C Chart 99. The _____________ Distribution is the most desirable for modeling the number of defects in a shirt.Poisson Weibull Exponential Extended 100. When multiple peaks are observed in a histogram, we call it asunimodalmultimodalbimodaluniform Loading...