IMPORTANT NOTE: All Project Management Questions are from the same Project. You only need to solve the project one time. The CEO of Carol O'Lights Manufacturing, produces custom-built relay devices for auto makers. The most recent project undertaken by Ms. O'Lights requires 11 different activities. The activities necessary to build an experimental relay model and related data are given in the following table. What is the slack on Activity A? ACTIVITY DESCRIPTION PREDECESSOR TIME (WEEKS) A Order new Machinery 10 B Plan new physical layout 4 C Determine safety changes in 2 existing machinery D DEL Receive equipment C 1 Hire new employees B, D 4 F Make plant alterations A, E 10 G 15 Make changes in existing E 2 machinery H Train new employees F,G 6 1 Install new machinery F,G 11 . Relocate old machinery D 16 K Conduct employee safety orientation H, I, J 8 0 2 03 4 5 06 08 10