2. Consider the project described below. Workers are paid at the rate of AED 50 per hour and fixed cost is AED 600 per day of the project as long as the project lasts. (days) No. of workers needed Activity Time Predecessor Survey (A) none Install drainage (B) Install Power lines (C) B, C Excavate site (D) Pour Foundation( E) a. Draw a graph of manpower needed assuming that each activity starts as soon as possible. b. Calculate daily manpower requirements for each day of the project duration