Question Details

Strayer MAT 510 Final Exam
 	Lean manufacturing, Six Sigma, Total Quality Management are some of the new systems for managing and improving an organization. What is a common theme running through these approaches?
	
 Question 2 
4 out of 4 points
	
 	What is tool that can be used to detect the structure variation?
 Question 3 
4 out of 4 points
	
 	Viewing a business as a system is important because:
			
 Question 4 
4 out of 4 points
	
 	Refer to Figure 3.21 and choose the correct statement for the measurements

 Question 5 

	
 	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 

 	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 7 
4 out of 4 points
	
 	Control limits were originally defined at the three-sigma level because:

			
 Question 8 
4 out of 4 points
	
 	The histogram has which of the following limitations?
Answer 			
	
 Question 9 

	
 	A sample of 50 invoices are inspected each shift for errors, and classified as either “good”, i.e., without error, or “bad”, having some problem. If we plot our bad invoices each shift on a control chart, which chart should we use?
Answer 			
	
			
 Question 10 

 	A main purpose of a control chart is to:

 Question 11 

	
 	An Adjusted R-square value is a correlation coefficient that has been modified to account for:

			
 Question 12 

	
 	The model residuals are examined to:

			
 Question 13 
4 out of 4 points
	
 	Which of the following is NOT a reason for adjusted R-Square being low?
Answer 			
	
 Question 14 
4 out of 4 points
	
 	Which of the following is NOT a measure of model adequacy?

			
 Question 15 

	
 	Tips for building useful models include:

			
 Question 16 

 	A 32 experiment means that we are experimenting with:

 Question 17 
4 out of 4 points
	
 	The basic reason for randomness of sampling in design of experiments is:

 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 
4 out of 4 points
	
 	Identify the assumption that is NOT made when conducting an experiment:

			
 Question 20 
4 out of 4 points
	
 	Which of the following is the best description of randomization?
t
			
 Question 21 
4 out of 4 points
	
 	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?
Answer 			
	Selected Answer:	    
			
 Question 22 
4 out of 4 points
	
 	Which of the following could be considered a prediction interval?
Answer 			
	Selected Answer:	    

			
 Question 23 
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?

			
 Question 24 

	
 	For which of the following scenarios am I most likely to utilize a Chi-squared test?
Answer 			
	

 Question 25 

 	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?