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QUESTION
"Testing the Difference Between Two Means." (Note: Please respond to one [1] of the following two [2] bulleted items)
Statistics class. Must be 250 words must cite work if applicable.
"Testing the Difference Between Two Means."
- What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations σ1 and σ2?
