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1. MAT 510 Final Exam (3 Set, 100% Score) For more course tutorials visit www.tutorialrank.com MAT 510 Final Exam Set 1 Question 1 Improvement is needed for an organization to survive because: Question 2 The Statistical Thinking Strategy has significant commonality with the scientific method. Which of the following statistical thinking principles is NOT generally associated with the scientific method? Question 3 Viewing a business as a system is important because:

2. Question 4 Improving the quality of process measurements is: Question 5 Suppose the Problem Solving Framework were used to attack a problem where the process in question was inherently stable. Which of the following would be a likely result of this effort? Question 6 The histogram below showing ages of credit card holders displays what type of distribution? Question 7 A main purpose of a control chart is to: Question 8

3. The histogram has which of the following limitations? Question 9 Non-random and unpredictable patterns on a control chart indicate: Question 10 A comparison between the Cp and Cpk for a process would find which of the following to be true? Question 11 A statistic that is used to indicate too much correlation between the predictors in a regression analysis is called the: Question 12

4. An Adjusted R-square value is a correlation coefficient that has been modified to account for: Question 13 Tips for building useful models include: Question 14 The model residuals are examined to: Question 15 Results of regression analysis are often abused in the following ways: Question 16 The basic reason for randomness of sampling in design of experiments is: Question 17

5. In every experiment there is experimental error. Which of the following statements is true? Question 18 An aspect of good experimental strategy is to study the effects of the variables (Xs) over a wide range. This strategy increases the chances that effects will be found because: Question 19 This technique is used to eliminate the effects of nuisance factors (e.g., machines, day of week, and season of year) from an experiment. Question 20 A 32 experiment means that we are experimenting with: Question 21

6. We ran a taste-test to see which soft drink employees in our company prefer. We had 100 employees, selected as randomly as possible, taste test two brands and determine which they preferred. Which of the following would be a reasonable statistical analysis to determine if there is a clear preference among our employees? Question 22 We are testing the null hypothesis that the average monthly revenue between four insurance offices is the same. We obtained a p-value of .07. Which of the following would be an appropriate conclusion about the population? Question 23 For which of the following scenarios am I most likely to utilize a Chi- squared test? Question 24 Which of the following could be considered a prediction interval?

7. Question 25 I have made a mistake in copying data into my computer to perform a large regression model with 20 independent variables. Basically, I ended up with random data in each of the columns. However, I accidentally ran the regression anyway. Making reasonable assumptions, which of the following outcomes is most likely? MAT 510 Final Exam Set 2 • Question 1 In every experiment there is experimental error. Which of the following statements is true? • Question 2 This technique is used to eliminate the effects of nuisance factors (e.g., machines, day of week, and season of year) from an experiment.

8. • Question 3 An aspect of good experimental strategy is to study the effects of the variables (Xs) over a wide range. This strategy increases the chances that effects will be found because: • Question 4 A 32 experiment means that we are experimenting with: • Question 5 Given the plot below, what might you suspect about factors A and B? • Question 6 Which type of variation was critical to resolving the realized revenue case study?

9. • Question 7 Figure 2.15 displays a model of the statistics discipline, showing the relationship between statistical thinking, statistical engineering, and statistical methods and tools. Which of the following is a principle illustrated by this model? • Question 8 The model residuals are examined to: • Question 9 A statistic that is used to indicate too much correlation between the predictors in a regression analysis is called the: • Question 10 The best way to evaluate the validity of a statistical model is: • Question 11

10. George Box tells us ―all models are wrong but some are useful‖. By this comment he means: • Question 12 Models based on subject matter fundamentals (theory) are generally better than statistical models for: • Question 13 We are testing the null hypothesis that the average monthly revenue between four insurance offices is the same. We obtained a p-value of .07. Which of the following would be an appropriate conclusion about the population? • Question 14 I have calculated an interval to document the uncertainty in my estimate of the long-term standard deviation I will experience in time to pay invoices in my business going forward. Baaed on this information, this should be considered what type of interval?

11. • Question 15 After running an ANOVA comparing the average years of experience between five different job classifications, we obtained a p value of .02. Which of the following would be a reasonable conclusion concerning the population in this case? • Question 16 For which of the following scenarios am I most likely to utilize a Chi- squared test? • Question 17 Which of the following could be considered a prediction interval? • Question 18 Improvement is needed for an organization to survive because: • Question 19

12. Control limits were originally defined at the three-sigma level because: • Question 20 If my histogram appears bimodal, what tool might help me evaluate why? • Question 21 In evaluating data on our process outputs, four characteristics we might investigate are: central tendency, variation, shape of distribution, and stability. Which of the following tools would be most helpful to determine stability of the process? • Question 22 The histogram has which of the following limitations? • Question 23 Non-random and unpredictable patterns on a control chart indicate:

13. • Question 24 Refer to Figure 3.21 and choose the correct statement for the measurements • Question 25 Processes are important because: MAT 510 Final Exam Set 3 • Question 1 Lean manufacturing, Six Sigma, Total Quality Management are some of the new systems for managing and improving an organization. What is a common theme running through these approaches?

14. • Question 2 Figure 2.15 displays a model of the statistics discipline, showing the relationship between statistical thinking, statistical engineering, and statistical methods and tools. Which of the following is a principle illustrated by this model? • Question 3 The Hidden Factory is: • Question 4 Sub-optimization occurs when: • Question 5 Suppose the Process Improvement Framework were used to attack a problem where the process in question was inherently unstable. Which of the following would be a likely result of this effort?

15. • Question 6 The histogram has which of the following limitations? • Question 7 Control limits were originally defined at the three-sigma level because: • Question 8 In evaluating data on our process outputs, four characteristics we might investigate are: central tendency, variation, shape of distribution, and stability. Which of the following tools would be most helpful to determine the shape of the distribution? • Question 9 If my histogram appears bimodal, what tool might help me evaluate why?

16. • Question 10 A process is said to be capable if: • Question 11 Results of regression analysis are often abused in the following ways: • Question 12 The model residuals are examined to: • Question 13 The best way to evaluate the validity of a statistical model is: • Question 14 Process models are used to:

17. • Question 15 An Adjusted R-square value is a correlation coefficient that has been modified to account for: • Question 16 The basic reason for randomness of sampling in design of experiments is: • Question 17 Identify the assumption that is NOT made when conducting an experiment: • Question 18 In the experimental layout below, which are the most important factors? Factor A Factor B Factor C Y -1 -1 -1 150

18. 1 -1 -1 148 -1 1 -1 156 1 1 -1 158 -1 -1 1 137 1 -1 1 132 -1 1 1 145 1 1 1 147 • Question 19 An aspect of good experimental strategy is to study the effects of the variables (Xs) over a wide range. This strategy increases the chances that effects will be found because: • Question 20 This technique is used to eliminate the effects of nuisance factors (e.g., machines, day of week, and season of year) from an experiment.

19. • Question 21 We have conducted an election poll of 600 likely voters, collected as randomly as possible. The 95% confidence interval (CI) for those planning to vote for Senator Smith is about 55% +/- 4%. How many additional likely voters would we need to poll to reduce the CI width to +/- 2%? Hint – you do not need to calculate the exact value to answer this question. • Question 22 For which of the following scenarios am I most likely to utilize a Chi- squared test? • Question 23 We are conducting a poll for the mayoral election of a medium sized city, and found with one week before the election that the Democrat candidate is leading with 52% planning to vote for her, 46% planning to vote for the Republican, with 2% not sure. The 95% confidence interval for proportion planning to vote for the Democrat is +/- 3%. Based on this information, and making reasonable assumptions, which of the following statements is correct?

20. • Question 24 We are testing the null hypothesis that the average monthly revenue between four insurance offices is the same. We obtained a p-value of .07. Which of the following would be an appropriate conclusion about the population? • Question 25 Which of the following could be considered a prediction interval? ============================================== = MAT 510 Midterm Exam (3 Set, 100% Score) For more course tutorials visit www.tutorialrank.com

21. MAT 510 Midterm Exam Set 1 MAT 510 MIDTERM First Attempt • Question 1 Improvement is needed for an organization to survive because: • Question 2 Why is it so difficult for a person or an organization to improve? • Question 3 A SIPOC map is: • Question 4

22. Lean manufacturing, Six Sigma, Total Quality Management are some of the new systems for managing and improving an organization. What is a common theme running through these approaches? • Question 5 Problem solving activities typically include: • Question 6 The fact that processes tend to be dynamic, rather than static, is a key principle of statistical thinking. Which of the following is a natural consequence of this fact? • Question 7 The Statistical Thinking Strategy has significant commonality with the scientific method. Which of the following statistical thinking principles is NOT generally associated with the scientific method? • Question 8

23. Figure 2.16 shows a chart of the Dow Jones Industrial Average from 1990 through 2011. This plot reveals some obvious change points, such as the 2008 financial collapse, and some unexplainable short-term variation. Assuming that these are the only sources of variation in this plot, what source of variation is NOT visible in the plot? • Question 9 In Figure 2.11, Coach Hau presented data showing where goals were scored on crosses. This produced unexpected results, in terms of where the goals came from, and helped his team determine an effective strategy on free kicks. This is an example of what principle of statistical thinking? • Question 10 The Statistical Thinking Strategy illustrated in Figure 2.14 provides a graphic of the overall approach to driving improvement through statistical thinking. Which of the following is a key principle illustrated in this specific graph?

24. • Question 11 In the soccer case study, Coach Hau developed a flowchart of the steps one goes through to properly ―head‖ the ball, and then developed unique drills to develop the team’s skills in each of these steps. This approach is an example of what statistical thinking principle? • Question 12 A manufacturing process has been experiencing problems. The operators charting the process data have identified the cause to be due to an unanticipated change in incoming raw materials. This problem should be considered: • Question 13 Process measurements are: • Question 14 Process complexity is important because complex processes:

25. • Question 15 Service and non-manufacturing processes: • Question 16 The Hidden Factory is: • Question 17 The primary goal of process mapping is to: • Question 18 Service processes are different from manufacturing processes in that: • Question 19

26. Viewing a business as a system is important because: • Question 20 Use of subject matter knowledge is a key aspect of the Statistical Thinking Strategy discussed in Chapter 2. For which of the following case studies in Chapter 4 was this principle NOT clearly applied? • Question 21 Which of the following are valid statements about the DMAIC framework? • Question 22 We learned in Chapter 3 that the measurement process is always important and worthy of our attention. However, in Chapter 4 we found that measurement can be absolutely critical to solving the problem. For which of the case studies in Chapter 4 was measurement NOT discussed as a critical issue?

27. • Question 23 Which of the following are accurate statements about the relationship between the Process Improvement Framework (PIF) and the Problem Solving Framework (PSF)? • Question 24 The frameworks discussed in Chapter 4 could be considered more specific examples of: • Question 25 If you are thinking creatively about how to take existing tools and link and sequence them to develop a novel approach to solve important problems, this would be an example of: MAT 510 MIDTERM 2ND Attempt • Question 1

28. Understanding variation is important because variation: • Question 2 A SIPOC map is: • Question 3 Improvement is needed for an organization to survive because: • Question 4 Why is it so difficult for a person or an organization to improve? • Question 5 W. E. Deming commented ―You don’t have to make these changes, survival is not mandatory.‖ His message is:

29. • Question 6 The fact that processes tend to be dynamic, rather than static, is a key principle of statistical thinking. Which of the following is a natural consequence of this fact? • Question 7 In the advertising case study, the unexpected ―V‖ shaped pattern in the plot of advertising dollars versus sales indicated what? • Question 8 Box, Hunter, and Hunter are quoted in this chapter as stating: ―Data have no meaning in themselves; they are meaningful only in relation to a conceptual model of the phenomenon studied.‖ This critical point is related to which of the following principles of statistical thinking? • Question 9

30. Analysts have noticed that October tends to be a bad month in the collections department – our collections on past due accounts tend to be consistently lower in October. This issue should be considered: • Question 10 It is, unfortunately, common in business for managers to demand an explanation for variation that is, based on statistics, typical and expected variation, i.e., common cause variation. Alternatively, there may be obvious special causes in the data that may be shrugged off as ―typical business fluctuations‖. Which of the following statements about interpretation of variation are true? • Question 11 The Statistical Thinking Strategy illustrated in Figure 2.14 provides a graphic of the overall approach to driving improvement through statistical thinking. Which of the following is a key principle illustrated in this specific graph? • Question 12

31. In Figure 2.11, Coach Hau presented data showing where goals were scored on crosses. This produced unexpected results, in terms of where the goals came from, and helped his team determine an effective strategy on free kicks. This is an example of what principle of statistical thinking? • Question 13 The Hidden Factory is: • Question 14 The primary goal of process mapping is to: • Question 15 Viewing a business as a system is important because: • Question 16

32. The SIPOC model for a business helps everyone in the company see the business from an overall perspective by: I. Keeping a focus on customer needs II. Identifying inputs and outputs for each step of the process III. Displaying cross-function activities in simple terms IV. Helping maintain the big business picture • Question 17 Process complexity is important because complex processes: • Question 18 Service processes are different from manufacturing processes in that: • Question 19 Processes are important because:

33. • Question 20 If you are thinking creatively about how to take existing tools and link and sequence them to develop a novel approach to solve important problems, this would be an example of: • Question 21 Which type of variation was critical to resolving the realized revenue case study? • Question 22 Suppose the Process Improvement Framework were used to attack a problem where the process in question was inherently unstable. Which of the following would be a likely result of this effort? • Question 23 The frameworks discussed in Chapter 4 could be considered more specific examples of:

34. • Question 24 The Problem Solving Framework begins with a ―Document the Problem‖ phase. The Process Improvement Framework does not begin this way, but rather begins with an ―Understand the Process phase.‖ Which of the following are valid reasons for this difference? • Question 25 Which of the following are valid statements about the DMAIC framework? MAT 510 Midterm Exam Set 2 • Question 1

35. W. E. Deming commented ―You don’t have to make these changes, survival is not mandatory.‖ His message is: • Question 2 The principal drivers of the rapid change in the global economy are: • Question 3 Process average or mean: • Question 4 Which of the following are principles of Statistical Thinking? • Question 5 A SIPOC map is:

36. • Question 6 Figure 2.16 shows a chart of the Dow Jones Industrial Average from 1990 through 2011. This plot reveals some obvious change points, such as the 2008 financial collapse, and some unexplainable short-term variation. Assuming that these are the only sources of variation in this plot, what source of variation is NOT visible in the plot? • Question 7 Figure 2.15 displays a model of the statistics discipline, showing the relationship between statistical thinking, statistical engineering, and statistical methods and tools. Which of the following is a principle illustrated by this model? • Question 8 In the soccer case study, Coach Hau developed a flowchart of the steps one goes through to properly ―head‖ the ball, and then developed unique drills to develop the team’s skills in each of these steps. This approach is an example of what statistical thinking principle?

37. • Question 9 Analysts have noticed that October tends to be a bad month in the collections department – our collections on past due accounts tend to be consistently lower in October. This issue should be considered: • Question 10 What is tool that can be used to detect the structure variation? • Question 11 In Figure 2.11, Coach Hau presented data showing where goals were scored on crosses. This produced unexpected results, in terms of where the goals came from, and helped his team determine an effective strategy on free kicks. This is an example of what principle of statistical thinking? • Question 12

38. The Statistical Thinking Strategy illustrated in Figure 2.14 provides a graphic of the overall approach to driving improvement through statistical thinking. Which of the following is a key principle illustrated in this specific graph? • Question 13 Viewing a business as a system is important because: • Question 14 Processes are important because: • Question 15 The Hidden Factory is: • Question 16

39. Refer to Figure 3.21 and choose the correct statement for the measurements • Question 17 Service processes are different from manufacturing processes in that: • Question 18 The SIPOC model for a business helps everyone in the company see the business from an overall perspective by: I. Keeping a focus on customer needs II. Identifying inputs and outputs for each step of the process III. Displaying cross-function activities in simple terms IV. Helping maintain the big business picture • Question 19 Sub-optimization occurs when:

40. • Question 20 Which of the following are valid statements about the DMAIC framework? • Question 21 Suppose the Process Improvement Framework were used to attack a problem where the process in question was inherently unstable. Which of the following would be a likely result of this effort? • Question 22 The Problem Solving Framework begins with a ―Document the Problem‖ phase. The Process Improvement Framework does not begin this way, but rather begins with an ―Understand the Process phase.‖ Which of the following are valid reasons for this difference? • Question 23

41. Which type of variation was critical to resolving the realized revenue case study? • Question 24 Which of the following are accurate statements about the relationship between the Process Improvement Framework (PIF) and the Problem Solving Framework (PSF)? • Question 25 If you are thinking creatively about how to take existing tools and link and sequence them to develop a novel approach to solve important problems, this would be an example of: MAT 510 Midterm Exam Set 3 Question 1

42. The standard deviation is: Question 2 Understanding variation is important because variation: Question 3 Process improvement activities typically include: Question 4 Process average or mean: Question 5 Which of the following are principles of Statistical Thinking?

43. Question 6 In Figure 2.11, Coach Hau presented data showing where goals were scored on crosses. This produced unexpected results, in terms of where the goals came from, and helped his team determine an effective strategy on free kicks. This is an example of what principle of statistical thinking? Question 7 It is, unfortunately, common in business for managers to demand an explanation for variation that is, based on statistics, typical and expected variation, i.e., common cause variation. Alternatively, there may be obvious special causes in the data that may be shrugged off as ―typical business fluctuations‖. Which of the following statements about interpretation of variation are true? Question 8

44. The Statistical Thinking Strategy illustrated in Figure 2.14 provides a graphic of the overall approach to driving improvement through statistical thinking. Which of the following is a key principle illustrated in this specific graph? Question 9 In the soccer case study, Coach Hau developed a flowchart of the steps one goes through to properly ―head‖ the ball, and then developed unique drills to develop the team’s skills in each of these steps. This approach is an example of what statistical thinking principle? Question 10 The Statistical Thinking Strategy has significant commonality with the scientific method. Which of the following statistical thinking principles is NOT generally associated with the scientific method? Question 11

45. Figure 2.15 displays a model of the statistics discipline, showing the relationship between statistical thinking, statistical engineering, and statistical methods and tools. Which of the following is a principle illustrated by this model? Question 12 A manufacturing process has been experiencing problems. The operators charting the process data have identified the cause to be due to an unanticipated change in incoming raw materials. This problem should be considered: Question 13 Process complexity is important because complex processes: Question 14 Service and non-manufacturing processes:

46. Question 15 The Hidden Factory is: Question 16 The primary goal of process mapping is to: Question 17 The SIPOC model for a business helps everyone in the company see the business from an overall perspective by: I. Keeping a focus on customer needs II. Identifying inputs and outputs for each step of the process III. Displaying cross-function activities in simple terms IV. Helping maintain the big business picture Question 18

47. Refer to Figure 3.21 and choose the correct statement for the measurements Question 19 Processes are important because: Question 20 Which type of variation was critical to resolving the realized revenue case study? Question 21 Suppose a DMAIC Framework were used to attack a problem where the process in question was inherently stable. Which of the following would be a likely result of this effort? Question 22

48. We learned in Chapter 3 that the measurement process is always important and worthy of our attention. However, in Chapter 4 we found that measurement can be absolutely critical to solving the problem. For which of the case studies in Chapter 4 was measurement NOT discussed as a critical issue? Question 23 Which of the following are accurate statements about the relationship between the Process Improvement Framework (PIF) and the Problem Solving Framework (PSF)? Question 24 The frameworks discussed in Chapter 4 could be considered more specific examples of: Question 25 If you are thinking creatively about how to take existing tools and link and sequence them to develop a novel approach to solve important problems, this would be an example of:

49. ============================================== = MAT 510 Week 1 Homework Assignment 1 For more course tutorials visit www.tutorialrank.com Homework Assignment 1 Due in Week 1 and worth 30 points Describe a work task, a hobby, or another activity that you regularly do, and sequentially list the various actions you take in order to complete this activity. Consider the complexity of your list and the amount of steps required to complete the activity. Answer the following questions in the space provided below:

50. 1. 1. Differentiate the main actions between doing and improving your activities. 2. 2. Determine the overall manner in which variation has affected your activities. ============================================== = MAT 510 Week 2 Homework Assignment 2 For more course tutorials visit www.tutorialrank.com Homework Assignment 2 Due in Week 2 and worth 30 points Answer the following questions in the space provided below: