a. Draw a project network. b. What are the critical activities and what is the expected project completion time? c. If Doug wants a 0.99 probability of completing the project on time, how far ahead of the scheduled meeting date should he begin working on the project? 2. Doug Casey is in charge of planning and coordinating next spring's sales management training program for his company. Doug listed the following activity information for this project: \begin{tabular}{|l|l|l|l|l|} \hline \multirow{2}{*}{ Activity } & \multirow{2}{*}{\begin{tabular}{l} Immediate \\ Predecessor \end{tabular}} & \multicolumn{4}{|l|}{ Time (weeks) } \\ \cline { 3 - 5 } & & Optimistic & \begin{tabular}{l} Most \\ Probable \end{tabular} & Pessimistic \\ \hline A & -- & 1.5 & 2.0 & 2.5 \\ \hline B & A & 2.0 & 2.5 & 6.0 \\ \hline C & -- & 1.0 & 2.0 & 3.0 \\ \hline D & C & 1.5 & 2.0 & 2.5 \\ \hline E & B, D & 0.5 & 1.0 & 1.5 \\ \hline F & E & 1.0 & 2.0 & 3.0 \\ \hline G & B, D & 3.0 & 3.5 & 7.0 \\ \hline H & G & 3.0 & 4.0 & 5.0 \\ \hline I & F, H & 1.5 & 2.0 & 2.5 \\ \hline \end{tabular}