You have been given the data in Table 1 below relating to the upgrading of the Ulwazi online learning system used by your university. Activity Predecessor J K L M N O P Q R J J K K KL NM PO Q slope 5 13 9 9 5 759 21 Project Ulwazi max crash time 1 2 1 2 2 1 1 5 0 normal time 2 WN 3 1 2 4 AN 2 4 5 1 normal cost 47 69.5 24.5 47 92 47 92 47 11 Duration 2 3 1 IN 2 4 2 4 6 1 Table 1.1 - Cost/time information 1.1 Construct a network diagram indicating the slope, maximum crash times of each activity and the critical path. (8 Marks)