QUESTION 4 (20 Marks) The table below shows different activity times for Project Beta using the three point estimate. Immediate Predecessor Activity Time in days Most Likely 6 Optimistic 5 Pessimistic A 7 B 8 11 8 8 6 11 D 12 15 E 5 6 9 F D 6 7 5 2 F 3 7 G H B 4 4 5 1 H 5 7 8 END EGI Determine the expected completion time for each activity and construct an Activity on Node (ADN) network diagram showing the Forward Pass, Backward Pass, slack and Critical Path. QUESTIONS (20 Marks) Shirlo has been appointed as a Project Manager to lead a special project in Global Equipment Inc., a company that manufacturers vacuum cleaners. The project requires coming up with a special ventilator design in 6 weeks to help ease the pressure on existing manufacturing companies as the demand has risen due to the Covid-19 outbreak The project has to be performed and delivered under certain constraints. Critically discuss the Triple Constraints theory in relation to the proposed project The End