Exercises for Mon Sept 10

1. On Mon Sept 3 I started Ch 3, on the famous nonparametric Nelson-Aalen and Kaplan-Meier, and also about the martingales, variance processes, etc. We also did Nils Exercise 8 on IUD data, and more.

2. I've uploaded com14c to the website, with the IUD expulsion analyses, including how to ML estimates for the two-parameter model.

3. I'm in the process of writing up Nils Exercices 9, 10, 11, 12, 13, 14, and the updated document will be uploaded to the course site within a few days. It will conveniently sum up the salient features of martinales, limiting normality, etc.

4. Exercises for Mon Sept 10: First, do Nelson-Aalen, with bands, for the men and women of Ancient Egypt. Plot the difference curve D(t) = Awomen(t) - Amen(t), with a confidence band, and summarise what you learn. Then do Exercises 1, 2, 3 from ABG Ch. 3. Finally, do a Nelson-Aalen confidence band for the IUD expulsion data, though it becomes rather wide, due to the small numer of events (11 cases out of 100).