Habitat for Humanity International is a nonprofit organization dedicated to eliminating poverty housing worldwide. Suppose the following table contains estimates of activity times (in days) involved in the construction of a house that Habitat for Humanity is building.

Activity	Optimistic	Most Probable	Pessimistic
A	5	6.0	7
B	8	9.0	10
C	6	6.5	10.5
D	6	8.0	9
E	5	6.0	8
F	4	5.0	6

(a)

Compute the expected activity completion times and the variance for each activity. (Round your answers to two decimal places.)

Activity	Expected Times	Variance
A
B
C
D
E
F

(b)

An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path. (Round your answers to two decimal places.) expected project completion time- variance of projection completion time-