please help with question 2.1. I need that the most, the diagram. Last time I posted this question for the second time they didnt answer 2.1...

Question 2 (27 marks) The following data has been extracted from Namibia Construction Company (NCC) a company that undertakes various building projects around Namibia. Activity Previous activity Normal costs Crash time Cost slope N$ 12 10 B D E F G H A A Normal time (days) 13 13 12 ? 10 5 7 6 12 8 20 000 15 000 10 000 12 000 8 000 6 000 4 000 5 000 8 000 Crash costs N$ 25 000 18 000 10 000 12 000 11 000 6 000 5 000 6 500 ? ? ? ? ? ? ? ? 8 DF B, C GH 5 5 5 ? 1 9 8 3 000 Page 14 of 16 The duration of activity D cannot be determined accurately. The estimates are as follows: Most likely 8 days Optimistic time 6 days Pessimistic time 10 days You have been hired as the management accountant of NCC and you have been tasked to assist the management in various calculations. Requirement Mark Sub- Total total 10 10 6 16 2 18 2 20 2.1 Draft a network diagram for the project. 22 Identify the different paths and indicate which one is the critical path. 2.3 Calculate the normal cost of the project. 2.4 Calculate the earliest starting time of the event that precedes activity H. 2.5 Calculate the latest starting time of the event that precedes activity G. 2.6 Calculate the crash cost for activity I. 2.7 Calculate the total cost if the project has to be completed in 41 days. Note: Show all the necessary workings or steps that are required to reach the answer. Marks are available for these. Total N 22 2 3 24 27 27