Discussion:
Q: A survey was conducted to compare the proportion of male and female adults, 25 years or older, who have completed four or more years of college. It was found that among 350 females, 100 completed four or more years of college, and among 400 males, 115 completed four or more years of college. At sigma = 0.02, is the proportion among females who have completed four or more years of college significantly different from the proportion among males who have completed four or more years of college?