A superintendent of a school district conducted a survey to find out the level of job satisfaction among teachers. Out of 53 teachers who replied to the survey, 13 claim they are satisfied with their job. z equals fraction numerator p with hat on top minus p over denominator square root of begin display style fraction numerator p q over denominator n end fraction end style end root end fraction The superintendent wishes to construct a significance test for her data. She finds that the proportion of satisfied teachers nationally is 18.4%. What is the z-statistic for this data