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GAQM CLSSBB Exam
Certified Lean Six Sigma Black Belt (CLSSBB) (Page 2 )

Updated On: 19-Jan-2026
Page 2 of 53
PDF with 300 Questions

A _______is used primarily to track the stability of the average value of a metric of interest.

  1. NP Chart
  2. Xbar-R Chart
  3. I-MR Chart
  4. C Chart

Answer(s): B



A valid mathematical Regression represents all of the characteristics shown except_______________.

  1. All of the standardized residuals will be within ±3 Standard Deviations
  2. The sum of the residuals is zero
  3. The residuals when plotted follow a Normal Distribution
  4. Most standardized residuals are within ±2 Standard Deviations
  5. The Residual is equal to the difference between the observed and predicted values

Answer(s): A



Which statement(s) are correct about the Regression shown here? (Note: There are 2 correct answers).

  1. The dependent variable is the outside temperature
  2. The relationship between outside temperature and number of customers per hour is a Linear Regression
  3. The dashed lines indicate with 95% confidence where all of the process data should fall between
  4. The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line
  5. The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C

Answer(s): D,E



Review the analysis shown here. Which statements are true about the process? (Note: There are 3 correct answers).

  1. The initial focus for this project would be to determine why the thicknesses are so frequently too low
  2. The majority of the process is closer to the lower specification limit
  3. This process is described with the Weibull Distribution
  4. The process has more problems with Variation than Centering
  5. The process follows a non-normal distribution with the given data

Answer(s): B,D,E



A Lean Six Sigma project is attempting to reduce inventory days. The Process Capability will be monitored as part of the Control Phase to track the sustainability of the improvement.



Which distribution type is best used for performing the Capability Analysis?

  1. Weibull Distribution
  2. Normal Distribution
  3. Exponential Distribution
  4. Logistic Distribution
  5. Gaussian Distribution

Answer(s): A



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