The Table Below Provides Information About Tasks to Be Completed

The table below provides information about tasks to be completed on a project,the precedence relationship between tasks and the expected times required to complete each task.Using this information,represent the project tasks on a Activity-on-Node (AON)network diagram,identify all the paths and the critical path,the critical tasks,the ES,EF,LS and LF times for each task and the time estimate for completing the project.
$$\begin{array} { | l | l | l | } \hline \text { Task } & \begin{array} { l } \text { Estimated } \\\text { completion } \\\text { time (weeks) }\end{array} & \begin{array} { l } \text { Preceeding } \\\text { tasks }\end{array} \\\hline \mathrm { A } & 2 & \text { None } \\\hline \mathrm { B } & 3 & \text { A } \\\hline \mathrm { C } & 2 & \mathrm {~A} \\\hline \mathrm { D } & 4 & \mathrm {~B} \\\hline \mathrm { E } & 3 & \mathrm { C } \\\hline \mathrm { F } & 5 & \mathrm { D } , \mathrm { E } \\\hline \mathrm { G } & 3 & \mathrm {~F} \\\hline\end{array}$$