6 a . Referring to Exercise 5, assume that 10 people are assigned to work on the project until it is finished. In light of the following assumptions, schedule the project and calculate labor utilization:

1. No activities are allowed to be interrupted.

2. The crew size that performs an activity cannot be reduced, but it is possible to increase the project’s completion time.

3. It is impossible to change the network.

4. It is not possible to increase the size of the crew and reduce the time to complete an activity.The durations stated in the table are the lower bounds; extra resources will just be wasted.

b. Repeat part

(a) now assuming that you can reduce the crew size and increase its duration

(the number of person-weeks required for each activity is constant).

c. Repeat part

(b) now assuming that you may interrupt each activity before it is completed and reschedule the remaining tasks at a later time.