x=18, z=6, M=8, N=6 ,

In the following example, the project manager knows the succession of the project activities and the expected time (in weeks) for the following activities. You need to show the critical path and answer how much time is needed to finish the project as early as possible. Activity Description Predecessor Expected Time T1 Select administrative and 12 medical staff T2 Select site and do site survey 9 T3 Select equipment and prepare T1 10 final construction plans and layout T4 Bring utilities to the site. T2 10 T5 Interview applicants and fill T3 X + 1 positions in nursing support staff, maintenance, and security. T6 Purchase and take delivery of T4 Z+1 equipment. T7 Construct the hospital and TN 15 Develop an information system Install the equipment. T5, T6 T9 Train nurses and support staff T7, TM T8 4 9