MAT 510 business statistics Midterm Exam Strayer University,

The frameworks discussed in Chapter 4 could be considered more specific examples of: The Statistical Thinking Strategy Statistical engineering The scientific method All of the above None of the above 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: Statistical thinking Statistical engineering Applied statistics DMAIC None of the above 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? Reducing resin output variation Reducing telephone waiting time at a bank Resolving customer complaints of baby wipe flush ability Realized revenue fiasco None of the above 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? Immediate opportunities for improvement would be missed Time would be wasted looking for something “broken” to “fix” Significant improvement would likely occur – no harm done All of the above None of the above We learned in Chapter 2 that most processes are dynamic in nature, and therefore the time dimension is often a critical consideration in process improvement. For which of the case studies in Chapter 4 was plotting data over time NOT critical to success? Reducing resin output variation Reducing telephone waiting time at a bank Resolving customer complaints of baby wipe flushability Realized revenue fiasco None of the above Which of the following are valid statements about the DMAIC framework? DMAIC came out of the Lean Six Sigma initiative DMAIC came out of the statistical engineering initiative DMAIC is similar in structure to the Problem Solving Framework DMAIC generally begins by identifying the source of a special cause None of the above Service processes are different from manufacturing processes in that: Service processes typically involve more human intervention which increases variation Measurements are often more difficult to make Process thinking is not typically part of the mind set of service process workers Customers and suppliers are often the same group of persons in service processes All of the above None of the above The Hidden Factory is: Where the real work is done; out of the view of the public A source of Increased costs and reduced process capacity Only present in manufacturing processes Created by the workforce to cover up mistakes and errors All of the above None of the above Process measurements are: Created by management to spy on the workforce Enable effective control and improvement of processes Only needed for products; what the process produces Not useful outside of the manufacturing environment All of the above None of the above Sub-optimization occurs when: An organization is viewed as a system Too much attention is paid to improvement Part of a process is improved but the overall performance of the process deteriorates All of the above None of the above