Solved: Explain the testing a single mean-two means, Basic Statistics

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Explain the testing a single mean-two means

Discussion:

Q: Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means? When can the sample standard deviations s 1 and s 2 be used in place of the population standard deviations s1 and s2?

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Basic Statistics: Explain the testing a single mean-two means

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