Question

Construct a confidence interval for p1−p2 at the given level of confidence. x1=382, n1=514, x2=422, n2=572,...

Construct a confidence interval for p1−p2 at the given level of confidence. x1=382, n1=514, x2=422, n2=572, 99% confidence The researchers are ___________% confident the difference between the two population proportions, p1−p2, is between_____ and_____.

Math   Statistics-And-Probability   
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Answer #1

x1 = 382

n1 = 514

x2 = 422

n2 = 572

We have to construct a 99% confidence interval for the difference between the population proportion.

Formula is

Zc = 2.58

( From z table)

( 0.0054 - 0.0687 , 0.0054 + 0.0687) = > ( - 0.0633 , 0.0742)

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