In this project, you will take a deeper look into the data on Assisted Reproductive Technology (ART). In your previous exploration of the data (Chapter 4), you saw that there is evidence for a linear relationship between the age of the prospective mother using ART and her chances for reproductive success. In this project, you will further analyze the results from that regression.
Another interesting relationship appears in the ART data. When eggs from a donor are implanted (that is, when the implanted eggs are not the prospective mother's), the relationship between success rate and age changes in a surprising way. This part of the study will encourage you to think about the real situation that the analysis is attempting to explain.