A certain project has the following precedence relationships.

Activity	Immediate Predecessor(s)
A	-
B	-
C	-
D	A, B
E	B
F	C, E
G	D, E
H	F, G

The activity times, in three different estimates (optimistic, most likely, and pessimistic), are as follows.

Activity	Optimistic (a)	Most Likely (m)	Pessimistic (b)
A	2	6	8
B	6	8	12
C	4	9	15
D	4	5	8
E	2	5	11
F	6	7	9
G	2	4	7
H	3	7	7

What is the expected time (te) for each activity? Round your calculations to the nearest second decimal point. Show all your work.

What is the critical path, and how long is this project expected to last? Show all your work.