Question: Construct a Network Diagram for the new house being constructed by Angel Estates and Construction begin{tabular}{|l|l|c|c|c|c|} hline ActivityCode & Activity description & ImmediatePredecessor & OptimisticTime
Construct a Network Diagram for the new house being constructed by Angel Estates and Construction

\begin{tabular}{|l|l|c|c|c|c|} \hline ActivityCode & Activity description & ImmediatePredecessor & OptimisticTime & MostLikely & PessimisticTime \\ \hline A & Site clearing & - & 1 & 2 & 3 \\ \hline B & Foundation & A & 2 & 3.5 & 8 \\ \hline C & Block Laying & B & 6 & 9 & 18 \\ \hline D & Roofing & C & 4 & 5.5 & 10 \\ \hline E & Plumbing & C & 1 & 4.5 & 5 \\ \hline F & Electrical work & E & 4 & 4 & 10 \\ \hline G & Plastering & D & 5 & 6.5 & 11 \\ \hline H & Fixing up of doors and & E,G & 5 & 8 & 17 \\ \hline I & windows & & & & \\ \hline J & Ceiling & C & 3 & 7.5 & 9 \\ \hline K & Flooring & F,I & 3 & 9 & 9 \\ \hline L & Interior Fixtures & J & 4 & 4 & 4 \\ \hline M & Exterior fixtures & J & 1 & 5.5 & 7 \\ \hline N & Painting & H & 1 & 2 & 3 \\ \hline \end{tabular} \begin{tabular}{|l|l|c|c|c|c|} \hline ActivityCode & Activity description & ImmediatePredecessor & OptimisticTime & MostLikely & PessimisticTime \\ \hline A & Site clearing & - & 1 & 2 & 3 \\ \hline B & Foundation & A & 2 & 3.5 & 8 \\ \hline C & Block Laying & B & 6 & 9 & 18 \\ \hline D & Roofing & C & 4 & 5.5 & 10 \\ \hline E & Plumbing & C & 1 & 4.5 & 5 \\ \hline F & Electrical work & E & 4 & 4 & 10 \\ \hline G & Plastering & D & 5 & 6.5 & 11 \\ \hline H & Fixing up of doors and & E,G & 5 & 8 & 17 \\ \hline I & windows & & & & \\ \hline J & Ceiling & C & 3 & 7.5 & 9 \\ \hline K & Flooring & F,I & 3 & 9 & 9 \\ \hline L & Interior Fixtures & J & 4 & 4 & 4 \\ \hline M & Exterior fixtures & J & 1 & 5.5 & 7 \\ \hline N & Painting & H & 1 & 2 & 3 \\ \hline \end{tabular}
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