Moving to another question will save this response. Question 31 The percentage of value of shipments that come from materials for the average manufacturer is: A greater than or equal to 40 and less than or equal to 49 percent B. greater than or equal to 50 and less than or equal to 59 percent. c. greater than or equal to 60 and less than or equal to 69 percent. D. greater than or equal to 70 percent. Moving to another question will save this response. Moving to another question will save this response. Question 30 The DMADV process for improving product and service designs is rooted in what methodology? A Project management B. Optimization cLean Six Sigma Moving to another question will save this response > Moving to another question will save this response. Question 29 The ratio of earnings to sales for a given time period is the A cost of goods sold. B merchandise inventory. c. profit margin. D. return on assets. Moving to another question will save this response. > Moving to another question will save this response. Question 28 Which of these quantitative techniques can be a causal model? A linear regression B. last period c. exponential smoothing D. weighted moving average Moving to another question will save this response