Using the following details you conduct pert analysis. the analysis is broken in smaller sub questions. so answering them one by one will complete the analysis. optimistic most likelypessimistic expected variance act no. description time time time time start activity a acti activity c activ 12 10 21 10 17 finish all times as in weeks answer the following questions: calculate the expected time of all the activities including start and finish. calculate variation of all the activities including start and finish. identify the four paths for the network and using your answer 1 and 2 values calculate the expected duration and variance of each path respectively identify the critical path. using the expected duration and variation of only the critical path calculate the probabilities of completing the project in 40 weeks, 42.5 weeks and 48 weeks. 1. 2. 3. 4. 5.