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a) The following Table 8 (below) contains a list of activities, with precedence requirements and crash costs for a project that is to be completed by Present Technologies Limited (PTL). Table 8 i. What is the critical path for this project in Table 1 , using the normal times?' (5 Marks) ii. You are PTL's Project Manager for this project and you have been asked to reduce the project completion time by three (3) days. Assume a linear cost per DAY shortened, and show step by step, how you arrived at your answer? (3 Marks) iii. Prepare a Project Completion Schedule, which includes the incremental cost and the total cost of crashing? (2 Marks) 'You are required to submit your CPM Arrow on Node Diagram. b) The Eastern Solutions Company Limited (ESCL) has tendered for, and won a contract to design and build a computerized flood-warning system in Trinidad and Tobago. Consider the activities, durations, and predecessor relationships to roll out this project, in the following network, shown in Table 9 (below). Draw the network and answer the questions that follow. Table 9. ESCL Computerized Flood-Warning System Project i. Using a network, what is the earliest expected time of completion of the whole project? (4 Marks) ii. Identify the Critical Path or Paths in this project. (2 Marks) iii. Using the information from Table 2, what is the probability that the project can be completed in 28 days? (4 Marks)