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Find a 95 Percent Confidence Interval for the Difference Between Xˉ1\bar { X } _ { 1 }

Question 14

Essay

Find a 95 percent confidence interval for the difference between means,where n1 = 50,n2 = 36, Xˉ1\bar { X } _ { 1 }
= 80, Xˉ2\bar { X } _ { 2 }
= 75,s12 = 5,and s22 = 3.Assume unequal variances.

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[4.14,5.85]
Feedback:df = (5/...

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