MAT 510 WEEK 11 FINAL EXAM latest 2020 with complete solution.A LEVEL EXAM 2020.

Document Content and Description Below

MAT 510 WEEK 11 FINAL EXAM • Question 1 4 out of 4 points Why is it so difficult for a person or an organization to improve? • Question 2 4 out of 4 points In Figure 2.11, C... oach 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 3 4 out of 4 points Service processes are different from manufacturing processes in that: • Question 4 4 out of 4 points Viewing a business as a system is important because: • Question 5 4 out of 4 points 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 6 0 out of 4 points 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 7 4 out of 4 points Control limits were originally defined at the three-sigma level because: • Question 8 4 out of 4 points A process is said to be capable if: • Question 9 4 out of 4 points If my histogram appears bimodal, what tool might help me evaluate why? • Question 10 4 out of 4 points Based on the flow chart for selecting control charts discussed in Chapter 5, which type of chart would be most appropriate if I am charting the % waste in a factory each month? This value is calculated by taking the total waste in tons within the factory each month, and dividing by total output, also in tons. • Question 11 4 out of 4 points Models based on subject matter fundamentals (theory) are generally better than statistical models for: • Question 12 4 out of 4 points An Adjusted R-square value is a correlation coefficient that has been modified to account for: • Question 13 4 out of 4 points Which of the following is NOT a measure of model adequacy? • Question 14 4 out of 4 points Tips for building useful models include: • Question 15 4 out of 4 points Which of the following is NOT a reason for adjusted R-Square being low? • Question 16 4 out of 4 points Which of the following is the best description of randomization? • Question 17 4 out of 4 points A 32 experiment means that we are experimenting with: • Question 18 4 out of 4 points 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 4 out of 4 points The basic reason for randomness of sampling in design of experiments is: • Question 20 4 out of 4 points In the experimental layout below, which are the most important factors? Factor A Factor B Factor C Y -1 -1 -1 150 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 21 4 out of 4 points 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 4 out of 4 points 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? • Question 23 4 out of 4 points 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 24 4 out of 4 points 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 4 out of 4 points Based on a regression model, I have developed a 95% prediction interval for the time it will take me to run a mile under specific conditions (weather, what I have eaten & drank, running shoes used, and so on). This interval goes from 5.2 minutes to 6.1 minutes. Which of the following could be an accurate description of this interval? [Show More]

Last updated: 1 year ago

Preview 1 out of 6 pages