MAT 510WEEK_5_MIDTERM 100...QUESTIONS AND ANSWRS...100%

Submitted Answers, Feedback Process improvement activities typically include: Selected Answer: All of the above Improvement is needed for an organization to survive because: Selected Answer: All of the above A SIPOC map is: Selected Answer: A comprehensive view of a process including customers and suppliers Understanding variation is important because variation: Selected Answer: All of the above W. E. Deming commented “You don’t have to make these changes, survival is not mandatory.” His message is: Selected Answer: Business changes in response to changing market needs are essential to the long-term success of the business In the advertising case study, the unexpected “V” shaped pattern in the plot of advertising dollars versus sales indicated what? Selected Answer: A decrease in advertising would also increase sales 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? Selected Answer: All activities can be viewed as a process 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? Selected Answer: Statistical engineering links the methods and tools to the statistical thinking philosophy, to ensure they are appropriately applied 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? Selected Answer: Searching for the specific reason for common cause variation is a waste of time and resources 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? Selected Answer: Structural variation 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? Selected Answer: All of the above 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: Selected Answer: A special cause Refer to Figure 3.21 and choose the correct statement for the measurements Selected Answer: Measure C is not accurate but has good precision The primary goal of process mapping is to: Selected Answer: All of the above Processes are important because: Selected Answer: All of the above The Hidden Factory is: Selected Answer: A source of Increased costs and reduced process capacity Process measurements are: Selected Answer: Enable effective control and improvement of processes Viewing a business as a system is important because: Selected Answer: Business performance is a function of all the interconnected processes in the system Sub-optimization occurs when: Selected Answer: Part of a process is improved but the overall performance of the process deteriorates 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? Selected Answer: Immediate opportunities for improvement would be missed 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? Selected Answer: Significant improvement would likely occur – no harm done