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Question

A software company has received a contract from a client for the development of an

E-Auction system. A team of engineers has determined the activities, precedence constraints and time estimates as given in the table below. All times are in weeks.

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(a) Draw an activity on arrow (AOA) network to represent this project. (5 marks)

(b) Complete the expected time for each activity of the project. Determine the critical path(s). What is the expected project completion time and its variance? (4 marks)

(c) Calculate the free float for each non-critical activity. (2 marks)

(d) What is the probability that the project will be completed within 24 weeks (1 mark)

(e) By what date is management 96 percent sure completion will occur?

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