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Find a 90 Percent Confidence Interval for the Difference Between p^1\hat { p } _ { 1 }

Question 65

Essay

Find a 90 percent confidence interval for the difference between the proportions of failures in factory 1 and factory 2,where p^1\hat { p } _ { 1 }
= .05, p^2\hat { p } _ { 2 }
= .04,n1 = 500,n2 = 2000.

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[-0.0076,...

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