Calculate part a in the picture below and part b) is there a gender cap? Choose the correct answer belowa. Since the interval does not contain 0, there is no evidence of a gender gapb. Since the interval does not contain 0, there is evidence of a gender gapC. Since the interval contains 0, there is no evidence of a gender gapD. Since the interval contains 0, there is evidence of a gender gap

In a survey, 21% of 225 single women said that they "definitely want to have children." In the same survey, 24% of 280 single men gave the same response. Construct a 90% confidence interval estimate of the difference between the proportions of single women and single men who definitely want to have children. Is there a gender gap? Construct a 90% confidence interval estimate.