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Posted on May 20, 2024

Independent random samples, each containing 90 observations, were selected from two populations. The samples from populations 1 and 2 produced 31 and 19 successes, respectively.

TestH0:(p1p2)=0againstHa:(p1p2)0

Use=0.05

(a) The test statistic is

(b) The P-value is

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