Auniversity financial aid office polled a random sample of 759 male undergraduate students and 836 female undergraduate students. each of the students was asked whether or not they were employed during the previous summer. 439 of the male students and 394 of the female students said that they had worked during the previous summer. give a 99% confidence interval for the difference between the proportions of male and female students who were employed during the summer. step 3 of 4 : find the value of the standard error. round your answer to three decimal places.