Use the Table and Network Below to Answer Parts (A)

Short Answer

Use the table and network below to answer parts (a) through (d).
$$\begin{array} { c | c | c | c } \text { Activity } & \begin{array} { c } \text { Time } \\\text { (Weeks) }\end{array} & \begin{array} { c } \text { Weekly } \\\text { Cost (\$ K) }\end{array} & \begin{array} { c } \text { Total } \\( \$ \mathrm {~K} )\end{array} \\\hline \text { A } & 5 & 2 & 10 \\\text { B } & 8 & 3 & 24 \\\text { C } & 6 & 4 & 24 \\\text { D } & 3 & 3 & 9 \\\text { E } & 4 & 2 & 8 \\\text { F } & 3 & 1 & \underline{3} \\& & & 78\end{array}$$ (a) On the network above, show ES, EF, LS, and LF for every event.
(b) Below, construct a Gantt chart for the network using only ES's and EF's.
(C)Using costs from the table and the Gantt chart in (b), show weekly costs for the project.
(d) Below, using the chart in (c) as a guide, construct a chart showing estimated cumulative project expenditures.