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Six Sigma Green Belt

Category - Black Belt

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When population means are not available in a hypothesis test, the differences between two sample means are used. The following are assumptions made about this type of analysis EXCEPT:

samples are randomly drawn
samples are dependent
populations are normally distributed
population variances are unknown

Explanation

Answer: B - In a hypothesis test, samples are not dependent.

Key Takeaway: In hypothesis testing, a number of assumptions are made about the sample means that are compared. For example, samples are expected to be randomly drawn and independent. Populations are also normally distributed.

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Six Sigma Green Belt

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Six Sigma Green Belt

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