In the previous project (Chapter 4), you examined data gathered from the Centers for Disease Control and Prevention (CDC), a national agency in the United States. To get a smaller, more localized picture of Assisted Reproductive Technology, examine the data at the Reproductive Resource Center Of Greater Kansas City, P.A.

As the center says, 'over 950 babies have been born from assisted reproductive technology procedures at Reproductive Resource Center of Greater Kansas City.' If you were a prospective client, what other information concerning successful ART procedures would you find useful?

Finally, at a center for ART in Alabama you can see their report on how advanced infertility techniques are helping couples.

In this project, you will explore the results from the previous project, and consider a new regression problem with some surprising (and perhaps confusing) data.

Another graph (again, from the CDC), displays two curves: success rates for women using their own eggs and for women using donated eggs. The vertical axis shows the successful percentage of all ART cycles. The horizontal axis shows the age of the prospective mother.

One curve shows the success rates for cycles that use embryos formed from the woman's own eggs. This curve represents the data analyzed in the previous chapter. In the following Data Views section, you will further explore the results of that regression.

The other curve on the plot shows the success rates for cycles that use embryos formed from donor eggs. What would you expect the relationship of success rate and age to be in this situation? Do you see that effect in the graph?

The following section will also explore this data to determine the effect of age on success rates when the eggs used are donor eggs.