a) Consider the following Activities of a project shown in below table. Draw a network diagram representing the project. (Consider estimated time by weeks). b) Find all possible paths in the diagram then write the critical path for this project and how long is it? Immediate Predecessors Estimated Duration Activity Activity Description 2 weeks 4 weeks 10 weeks 6 weeks 4 weeks 5 weeks Excavate Lay the foundation Put up the rough wall Put up the roof Install the exterior plumbing Install the intrior plumbing Put up the exterior siding Do the exterior painting Do the electrical work Put up the wallboard Install the flooring Do the interior painting nstall the exterior fixtures nstall the interior fixtures 9 weeks 7 weeks 8 weeks 4 weeks 5 weeks 2 weeks 6 weeks E G a) Consider the following Activities of a project shown in below table. Draw a network diagram representing the project. (Consider estimated time by weeks). b) Find all possible paths in the diagram then write the critical path for this project and how long is it? Immediate Predecessors Estimated Duration Activity Activity Description 2 weeks 4 weeks 10 weeks 6 weeks 4 weeks 5 weeks Excavate Lay the foundation Put up the rough wall Put up the roof Install the exterior plumbing Install the intrior plumbing Put up the exterior siding Do the exterior painting Do the electrical work Put up the wallboard Install the flooring Do the interior painting nstall the exterior fixtures nstall the interior fixtures 9 weeks 7 weeks 8 weeks 4 weeks 5 weeks 2 weeks 6 weeks E G