Mathematics > EXAM > MAT 510 Final Exam 6 - Latest 2019/20 Questions and answers (all Correct). (All)

MAT510 Final Exam 6 • 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 runnin... g through these approaches? • Question 2 What is tool that can be used to detect the structure variation? • Question 3 Viewing a business as a system is important because: • Question 4 Process measurements are: • Question 5 The frameworks discussed in Chapter 4 could be considered more specific examples of: • Question 6 What does it mean if capability index Cp is less than 1? • Question 7 Control limits were originally defined at the three-sigma level because: • Question 8 The histogram has which of the following limitations? • Question 9 Non-random and unpredictable patterns on a control chart indicate: • Question 10 If my histogram appears bimodal, what tool might help me evaluate why? • Question 11 Results of regression analysis are often abused in the following ways: • Question 12 Which of the following is NOT a reason for adjusted R-Square being low? • Question 13 The best way to evaluate the validity of a statistical model is: • Question 14 If you had the following residual plots what would be your concerns regarding the adequacy of the model associated with these residuals? • Question 15 Process models are used to: • Question 16 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 17 What should one consider when analyzing the results of an experiment? • Question 18 Which of the following purposes are served by replicating an experiment? 1. Provide a means for estimating the experimental error 2. Increase the number of treatment effects included in the experiment 3. Improve the precision of estimates of treatments effects • 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 The basic reason for randomness of sampling in design of experiments is: • Question 21 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? • Question 22 For which of the following scenarios am I most likely to utilize a Chi-squared test? • Question 23 A local university ran a regression model on factors impacting starting job salary of employed graduates. After validating this as a reasonable model, the university noted that the regression coefficient for GPA had a p-value of .10. Which of the following would be a reasonable conclusion in this case? • Question 24 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? • Question 25 What would happen (other things equal) to a confidence interval if you calculated a 99 percent confidence interval rather than a 95 percent confidence interval? [Show More]

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