Question: a 90% confidence interval for the difference between the two population proportions, p 1 - p 2 . x 1 = 106, n 1 =708,

a 90% confidence interval for the difference between the two population proportions, p1 - p2.

x1 = 106, n1 =708, x2 =55, and n2 =623

The 90% confidence interval for p1 - p2 =___

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