QUESTION ONE a) Planning a project within fixed project time constraints can be done either by fast-tracking or crashing the network. Explain the difference between these two project schedule compression techniques.

[ b) A company is about to launch an emergency mechanical ventilator it was working on in response to Covid-19 pandemic. The company has tasked its public relations department to organise this event. You have been appointed to lead the launch preparations project. You have prepared the following time estimates in hours and cost for the identified five activities as given in the table below. Assume that the activities can be done either at normal or at fast pace but not at any other pace in between. Additionally, you have estimated overhead cost of $25.00 per hour. What duration for the preparations would you recommend in order to optimise the project cost? Activity Normal Time (hours) Crash Time (hours) Normal Cost ($) Crash Cost ($) Predecessor A 8 6 80 100 - B 7 4 40 94 A C 12 5 100 184 A D 9 5 70 102 A E 6 6 50 50 B, C,