Capture the scope and activities of a plant improvement project in your workplace consists of 10 or more activities and is to be done by contractor. Your estimates of the durations (in weeks) for each of the activities of an important maintenance activitv. steos. times and sequence are needed to be collected in the table. 2B.1 Calculate the estimated time and the standard deviation on that estimate for each activity. 2B.2 Draw the network for this project in a time-scaled Activity-on Arrow format. 2B.3 Establish the critical path and semi critical path for the project, the estimated project completion time and standard deviations. What is the probability of the project taking more than apparent critical path in weeks? 2B.4 If the job can be done in 1.2 times of apparent critical path in weeks, will result in a bonus of $250000. What is the likelihood of this happening? 2B.5 What completion time should be specified in the contract if you want to be 95% certain that it will be done in that time