To compare the popularity rates of two different political candidates in their respective states, a random sample of 212 citizens from State A yielded 145 who were in favor of their state's candidate whereas 128 citizens out of the 200 selected from State B were in favor of their state's candidate. We wish to use a significance level of 0.05 to test whether there exists a difference between the popularity rates of these two candidates. The value of the test statistic rounded to two significant places after the decimal is:__________.
