Practice Quiz

Six Sigma Green Belt Exam Prep - Question List

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41. Stakeholders are individuals or organizations that are affected by a company’s decisions. Which one of these can be considered an external stakeholder to a global oil and gas company?
  1. project leads in overseas offices
  2. independent drilling equipment producers
  3. seasonal employees
  4. subcontracted consultants
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42. NEC launches a new TV set in Washington State in 2008 with a limited release. Company executives are interested in tracking sales’ patterns in order to make production decisions for the following year. What graphical tool can display sales figures by month?
  1. histogram
  2. run chart
  3. CTQ tree
  4. process map
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43. Kroger’s grocery stores in Houston are interested in gauging the response of weekend managers to door promotions. By selecting specific managers, what sampling method are executives using in their research?
  1. convenience sampling
  2. stratified sampling
  3. simple random sampling
  4. judgment sampling
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44. A biomedical company is studying whether its knee joint replacement is causing nerve damage. After extensive tests, the researchers make an erroneous decision, concluding that the replacement does cause nerve damage. A Type I error is the probability of?
  1. rejecting the alternative hypothesis when it is true
  2. rejecting the null hypothesis when it is true
  3. accepting the null hypothesis when it is true
  4. accepting the alternative hypothesis when it is true
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45. All of the following are the components of the multiple regression model EXCEPT:
  1. slopes of trend lines
  2. correlation coefficients
  3. random error terms
  4. intercept
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