Consider two independent populations that are normally distributions. A simple random sample of n1=40 from the first population showed x¯1=71, and a simple random of size n2=43 from the second population showed ¯x¯2=68.Suppose σ1=9 and σ2=2, find a 98% confidence interval for μ1−μ2.
Based on the confidence intervals you computed, what can you conclude?
A)We are 98% confidence that μ1>μ2μ1>μ2.
B)We are 98% confident that either μ1<><μ2 or="" μ1="">μ2μ1>μ2
C)We are 98% confidence that μ1<><>
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