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QUESTION
Assuming that both populations are normally distributed, construct a 95% confidence interval about 12.
Assuming that both populations are normally distributed, construct a 95% confidence interval about
μ1−μ2. (μ1 represents the mean of the experimental group and μ2 represents the mean of the control group.).
Experimental Control
N=25 17
X=47.5 48.5
S=5.6 11.2
