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Evaluate E pi . 91 P2 . 92 Evaluate E = z for z = 1.96, x1 = 41, x2 = 90, n1 = 47,

Evaluate E

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pi . 91 P2 . 92 Evaluate E = z" for z = 1.96, x1 = 41, x2 = 90, n1 = 47, n2 = 103, P1 = , 91 = 1 - P1, P2 = , and 92 = 1 -p2. E = (Round to four decimal places as needed.)

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