Below are the Intervals from primary AIDS diagnosis until death for a sample of 12 hemophiliac patients at most 40 years of age at HIV seroconversion.
|
ID
|
Survival
|
|
|
(months)
|
|
|
|
|
|
1
|
2
|
|
|
2
|
3
|
|
|
3
|
6
|
|
|
4
|
6
|
|
|
5
|
7
|
|
|
6
|
10
|
|
|
7
|
15
|
|
|
8
|
15
|
|
|
9
|
16
|
|
|
10
|
27
|
|
|
11
|
30
|
|
|
12
|
32
|
|
(a) Use the Kaplan-Meier (product-limit) method to estimate the survival function.
(b) Construct a survival curve based on the product-limit estimate.
(c) Estimate the median survival time