Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 55 and 48 successes, respectively.
Test H0:(p1−p2)=0
against Ha:(p1−p2)≠0
. Use α=0.05
.
(a) The test statistic is
equation editorEquation Editor
(b) The P-value is
equation editorEquation Editor
(c) The final conclusion is
A. There is not sufficient evidence to reject the null hypothesis that (p1−p2)=0
.
B. We can reject the null hypothesis that (p1−p2)=0
and accept that (p1−p2)≠0
.
