14. For the data in Chapter 12, Example 4, we found that the risk of developing breast cancer was 1.33 times greater for women who had their first child at age 25 or older, compared with women who had their first child before age 25.

a. Specify the null and alternative hypotheses for this study.

b. The chi-squared statistic for this study is 1.75. Find the p-value and make a conclusion. Rewrite the conclusion in words that someone with no training in statistics would understand.