Question

Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 42 and 35 successes, respectively. Test H0:(p1−p2)=0 H 0 : ( p 1 − p 2 ) = 0 against Ha:(p1−p2)≠0 H a : ( p 1 − p 2 ) ≠ 0 . Use α=0.06 α = 0.06 . (a) The test statistic is (b) The P-value is (c) The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that (p1−p2)=0 ( p 1 − p 2 ) = 0 . B. We can reject the null hypothesis that (p1−p2)=0 ( p 1 − p 2 ) = 0 and accept that (p1−p2)≠0 ( p 1 − p 2 ) ≠ 0 .

Answer 1