1. A local project being analyzed by PERT has 10 activities, 7 of which are on the critical path. If the estimated time along the critical path is 105 days with a project variance of 25, what is the probability that the project will be completed in 110 days or less? (please answer to four decimal digits)

2. The following represents a project with known activity times. All times are in weeks.

Activity	Immediate Predecessor	Time (weeks)
A	-	5
B	-	3
C	A	5
D	B	5
E	C, D	1
F	B	5

What is the minimum possible time required for completing the project (round it to the nearest whole number)?

3. The following represents a project with four activities. All times are in weeks.

Activity	Immediate Predecessor	Optimistic Time	Most Likely Time	Pessimistic Time
A	-	2	8	14
B	-	8	8	8
C	A	6	9	18
D	B	2	11	17

What is the minimum expected completion time for the project (please round off to two decimal digits)?

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