Question: Repeat Exercise 25 but with a 99% confidence interval. Compare your result with the result in Section 6.3, Exercise 27, part (b). You can construct

Repeat Exercise 25 but with a 99% confidence interval. Compare your result with the result in Section 6.3, Exercise 27, part (b).


You can construct a confidence interval for the difference between two population proportions p1 - p2 by using the inequality below.

(Pi – P2) < Pi – P2 < (pi – P2) + za П1 П2 П2

Construct the indicated confidence interval for p1 - p2. Assume the samples are random and independent.

(Pi P2) < Pi P2 < (pi P2) + za 1 2 2

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