b) Stephen Hall is developing a program in supply chain management certification for managers. He has listed a number of activities that must be completed before this program could be conducted. The information as per table below. ACTIVITY IMMEDIATE PREDECESSOR(S) TIME (days) 2 5 1 10 3 6 8 B A.D E,F i) Draw a project network based on the above information. (4 marks) ii) Identify the critical path. (1 mark) Compute the completion time for the above activities. (1 mark) iv) Calculate the slack time for each activity. (4 marks) QUESTION 2 a) Identify with relevant example on any six (6) types of layout strategies. (6 marks) b) Excellent Manufacturing (EM) produces personal digital assistant (PDA). In order to assemble one unit PDA, its require 10 activity as below: ACTIVITY IMMEDIATE PREDECESSOR(S) A B. D E F G H | J TIME (SECONDS) 3.0 2.0 1.5 5.0 3.5 3.0 2.5 4.0 2.0 5.5 A,B D D E.F G H 1 i) Draw the precedence diagram. (3 marks) ii) Compute the cycle time if 4,500 units need to produce per day. Working hour from 8.30 am to 5.30 pm including 1.5 hours break. (3 marks) Assign the activity into workstation. (5 marks) iv) Calculate the efficiency and idleness of the assembly line