Problem 1:
The following data represent survival time in days after a heart transplant and patient age in years at the time of transplant for 10 randomly selected patients.
|
Age at transplant
|
28
|
41
|
46
|
53
|
39
|
36
|
47
|
29
|
48
|
44
|
|
Survival time, in days
|
7
|
278
|
44
|
48
|
406
|
382
|
1995
|
176
|
323
|
1846
|
(a) Find the least-squares line appropriate for these data.
(b) Plot the points and graph the line.
(c) Calculate the 95% con?dence intervals for β0 and β1, respectively.