The difference between the two sample means 1 -
2 is an interval estimator of the difference between two population means μ1 - μ2.
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Q9: For a hypothesis test about the difference
Q10: In the case when Q11: We convert the estimate Q12: 2) multiplied by either zα/2 or tα/2,df Q13: A common case of dependent sampling is Q15: A left-tailed test determines whether μ1 is Q16: The confidence interval for the difference μ1 Q17: If the underlying populations cannot be assumed Q18: There is only one type of matched-pairs Q19: We always deal with matched-pairs sampling if
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