Let 1 p be the population proportion of singles who prefer Candidate A and 2 p be the population proportion of married who prefer Candidate A. Compute the test statistic, z* ,

 Let 1 p be the population proportion of singles who prefer Candidate A and 2 p be the

population proportion of married who prefer Candidate A. Compute the test statistic, z* ,for testing H_o:  p₁=p_{2 vs.}  H_{a :}  p₁≠p₂.