Question: Independent random samples, each containing 50 observations, were selected from two populations. The samples from populations 1 and 2 produced 31 and 19 successes, respectively.

Independent random samples, each containing 50 observations, were selected from two populations. The samples from populations 1 and 2 produced 31 and 19 successes, respectively.

TestHo: (p1-p2)=0 against Ha: (p1-p2) does not =0. Use a=0.02

(a) The test statistic is________

(b) The P-value is_________

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