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Six Sigma Green Belt Exam Prep

Category - Six Sigma Green Belt

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Executives at a software company are studying the differences between two groups of application users using Analysis of Variance (ANOVA). If they ACCEPT the null hypothesis in this study, the implication is that:
  1. there are no differences in the means between the two groups
  2. there are small differences in the means between the two groups
  3. there are large differences in the means between the two groups
  4. there are no differences between the first group and the population
Explanation
Answer: A - Accepting the null hypothesis in a study of two groups implies that there are no differences in the means between the two groups.
Key Takeaway: In the ANOVA, accepting the null hypothesis means that there are no significant differences between mean values of two groups. Conversely, rejecting the null hypothesis means that there is significant difference between means values of two groups.
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