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The Null Hypothesis, known as HO, is the hypothesis statement that maintains there is no difference between two or more data samples. The burden of any hypothesis test is to disprove the Null. If there is a greater than 5% probability that the difference is due to chance, then the Null Hypothesis is cannot be rejected and the Alternative Hypothesis should not be pursued.

For a better understanding of Null Hypothesis and an overview of Lean Six Sigma, check out our Free Lean Six Sigma Yellow Belt Training, Green Belt Training or Lean Training.

Elisabeth Swan

Elisabeth is a Managing Partner & Executive Advisor at GoLeanSixSigma.com. For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.