QUESTION 1 PERT analysis is used to determine the confidence limits for the duration of a project. Johor Bahru City Council (MBJB) wishes to appoint contractor for road widening project. A contractor estimates that it will most likely take 65 days to undertake the project. Following the negotiations, the contractor estimates that if nothing goes wrong, the project completion time is estimated to be 48 days and in the event of work disruption, the project is expected to be completed within 85 days. a. Calculate the expected project duration, (Te) and its standard deviation (6) (10 marks) b. What is the expected project duration under the 95% confidence limits? (10 marks) 1 SBEC3753