Any idea on how to solve this? The full questions is: Construct a 90% cofidence

Question

Any idea on how to solve this? The full questions is: Construct a 90% cofidence interval for u1-u2. Two independentsamples are randomly selected from normal population. The samplestatistics are given below: n1=11 n2=18 x-bar1=4.86 x-bar2=5.26 x1=0.76 x2=0.51 thanks if you can help Any idea on how to solve this? The full questions is: Construct a 90% cofidence interval for u1-u2. Two independentsamples are randomly selected from normal population. The samplestatistics are given below: n1=11 n2=18 x-bar1=4.86 x-bar2=5.26 x1=0.76 x2=0.51 thanks if you can help

Explanation / Answer

(xbar1 - xbar2) +- 1.645[1sq / n1] + [2sq /n2] Assuming x1 and x2 are 1 and 2 .76sq = .5776, .51sq = .2601 (4.86 - 5.26) +- 1.645 [.5776 / 11] + [.2601 / 18] (-.826, .026)

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