Mat 510 Week 11 Final

7 Oct No Comments

Question 1

4 out of 4 points

   
  In every experiment there is experimental error.  Which of the following statements is true?Answer      
  Selected Answer:  This error can be changed statistically by increasing the degrees of freedomCorrect Answer:  This error can be changed statistically by increasing the degrees of freedom      

Question 2

4 out of 4 points

   
  This technique is used to eliminate the effects of nuisance factors (e.g., machines, day of week, and season of year) from an experiment.Answer      
  Selected Answer:  BlockingCorrect Answer:  Blocking      

Question 3

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:Answer      
  Selected Answer:  The size of the effect relative to the experimental variation is increasedCorrect Answer:  The size of the effect relative to the experimental variation is increased      

Question 4

4 out of 4 points

   
  A 32 experiment means that we are experimenting with:Answer      
  Selected Answer:  Three levels of two factorsCorrect Answer:  Three levels of two factors      

Question 5

4 out of 4 points

   
  Given the plot below, what might you suspect about factors A and B? Answer      
  Selected Answer:  The effect of A depends on the level of BCorrect Answer:  The effect of A depends on the level of B      

Question 6

4 out of 4 points

   
  Which type of variation was critical to resolving the realized revenue case study?Answer      
  Selected Answer:  Structural variationCorrect Answer:  Structural variation      

Question 7

4 out of 4 points

   
  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?Answer      
  Selected Answer:  Statistical engineering links the methods and tools to the statistical thinking philosophy, to ensure they are appropriately appliedCorrect Answer:  Statistical engineering links the methods and tools to the statistical thinking philosophy, to ensure they are appropriately applied      

Question 8

4 out of 4 points

   
  The model residuals are examined to:Answer      
  Selected Answer:  All of the aboveCorrect Answer:  All of the above      

Question 9

4 out of 4 points

   
  A statistic that is used to indicate too much correlation between the predictors in a regression analysis is called the:Answer      
  Selected Answer:  Variance inflation factorCorrect Answer:  Variance inflation factor      

Question 10

4 out of 4 points

   
  The best way to evaluate the validity of a statistical model is:Answer      
  Selected Answer:  All of the aboveCorrect Answer:  All of the above      

Question 11

4 out of 4 points

   
  George Box tells us “all models are wrong but some are useful”. By this comment he means:Answer      
  Selected Answer:  B and CCorrect Answer:  B and C      

Question 12

4 out of 4 points

   
  Models based on subject matter fundamentals (theory) are generally better than statistical models for:Answer      
  Selected Answer:  A and BCorrect Answer:  A and B      

Question 13

4 out of 4 points

   
  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?Answer      
  Selected Answer:  None of the aboveCorrect Answer:  None of the above      

Question 14

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?Answer      
  Selected Answer:  Confidence interval for a parameterCorrect Answer:  Confidence interval for a parameter      

Question 15

0 out of 4 points

   
  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?Answer      
  Selected Answer:  None of the aboveCorrect Answer:  We have strong evidence to state that at least two of the job classifications have different average ages      

Question 16

4 out of 4 points

   
  For which of the following scenarios am I most likely to utilize a Chi-squared test?Answer      
  Selected Answer:  Comparing the proportion of employees who take 10 or more sick days a year between three manufacturing plantsCorrect Answer:  Comparing the proportion of employees who take 10 or more sick days a year between three manufacturing plants      

Question 17

4 out of 4 points

   
  Which of the following could be considered a prediction interval?Answer      
  Selected Answer:  An interval documenting uncertainty in the average of the next month’s daily revenuesCorrect Answer:  An interval documenting uncertainty in the average of the next month’s daily revenues      

Question 18

4 out of 4 points

   
  Improvement is needed for an organization to survive because:Answer      
  Selected Answer:  All of the aboveCorrect Answer:  All of the above      

Question 19

4 out of 4 points

   
  Control limits were originally defined at the three-sigma level because:Answer      
  Selected Answer:  This level provides a good balance between the risks of having “false alarms” and missing special causesCorrect Answer:  This level provides a good balance between the risks of having “false alarms” and missing special causes      

Question 20

4 out of 4 points

   
  If my histogram appears bimodal, what tool might help me evaluate why?Answer      
  Selected Answer:  StratificationCorrect Answer:  Stratification      

Question 21

4 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?Answer      
  Selected Answer:  Run chartCorrect Answer:  Run chart      

Question 22

4 out of 4 points

   
  The histogram has which of the following limitations?Answer      
  Selected Answer:  It hides the effect of process instabilityCorrect Answer:  It hides the effect of process instability      

Question 23

4 out of 4 points

   
  Non-random and unpredictable patterns on a control chart indicate:Answer      
  Selected Answer:  Special cause variationCorrect Answer:  Special cause variation      

Question 24

4 out of 4 points

   
  Refer to Figure 3.21 and choose the correct statement for the measurementsAnswer      
  Selected Answer:  Measure C is not accurate but has good precisionCorrect Answer:  Measure C is not accurate but has good precision      

Question 25

4 out of 4 points

   
  Processes are important because:Answer      
  Selected Answer:  All of the aboveCorrect Answer:  All of the above      



Click following link to download this document

Mat 510 Week 11 Final.docx

Would you like your assignment done free from plagiarism by an expert? Place your order now and it shall be done within the timeframe you indicate.

To view and download a complete answer, scroll down to the bottom to pay Pay to view