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Six Sigma Green Belt Questions 41–45 (page: 10)

Updated On: 9-Feb-2026

A Belt experienced an Alpha of .05 and a Beta of .10 and knew these are the most common risk levels when running a Statistical test.

  1. True
  2. False

Answer(s): A



Inferential Statistics is largely about Significance. There are both Practical and _______________ Significance to consider during an analysis of data in a Lean Six Sigma project.

  1. Problematic
  2. Impractical
  3. Usable
  4. Statistical

Answer(s): D



The Central Limit Theorem helps us understand the ___________ we are taking and is the basis for using sampling to estimate population parameters.

  1. Analysis
  2. Kurtosis
  3. Risk
  4. Route

Answer(s): C



Hypothesis Tests determine the probabilities of differences between observed data and the hypothesis being solely due to _________ based on the result of the P-values.

  1. Human error
  2. Measurement error
  3. Shift differences
  4. Chance

Answer(s): D



The Alpha level of a test (level of significance) represents the yardstick against which P-values are measured and the Null Hypothesis is rejected if the P-value is which of these?

  1. Less than the Alpha level.
  2. Greater than the Alpha level.
  3. Greater than the Beta and Alpha level.
  4. Less than one minus Alpha.
  5. Less than the power of one minus Beta.

Answer(s): A



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