Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 25 and 14 successes, respectively. Test H0:(p1−p2)=0 against Ha: (p1−p2)≠0. Use α=0.07 (a) The test statistic is: (b) The P-value is: (c) The final conclusion is: A. We can reject the null hypothesis that (p1−p2)=0 and accept that (p1−p2)≠0 B. There is not sufficient evidence to reject the null hypothesis that (p1−p2)=0

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.