CLSSBB – Certified Lean Six Sigma Black Belt

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  When the cutting speed increased from low to high level, the tool age increases

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  The coefficient of the metal hardness is positively related to the output of tool age

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  The coded coefficient is lower for cutting speed than the cutting angle related to the output of tool age

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  These plots prove a statistically significance factor with 95% confidence

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  These plots are an example of interaction plots
  
  

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  The dependent variable is the outside temperature

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  The relationship between outside temperature and number of customers per hour is a Linear Regression

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  The dashed lines indicate with 95% confidence where all of the process data should fall between

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  The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line

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  The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C
  
  

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  Created for every project

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  Based on team's collective opinions

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  Updated whenever a parameter is changed

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  Used to show each step in a process

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  A living document throughout project lifecycle