2. Conslder the office renovation project data in Table 7.16. A "zero" time estimate means that the activity could take a very small amount of time and should be treated as a numeric zero in the analysis. a. Based on the critical path, find the probability of completing the office renovation project by 39 days. b. Find the date by which you would be 90 percent sure of completing the project. \begin{tabular}{|l|l|l|l|l|}\hline Table & \multicolumn{4}{|c|}{Activity data for advertising project}\\\hline & \multicolumn{4}{|c|}{Time estimate (weeks)}\\\hline Activity & Optimistic & Most likely & pessimistic & Immediate predecessor(s)\\\hline START & 0 & 0 & 0 & -\\\hline A & 6 & 10 & 14 & START \\\hline B & 0 & 1 & 2 & A \\\hline C & 16 & 20 & 30 & A \\\hline D & 3 & 5 & 7 & B \\\hline E & 2 & 3 & 4 & D \\\hline F & 7 & 10 & 13 & C \\\hline G & 1 & 2 & 3 & D \\\hline \end{tabular} CS CamScanner \begin{tabular}{|l|l|l|l|l|}\hline H & 0 & 2 & 4 & G \\\hline \begin{tabular}{l} I \\ J \end{tabular} & 2 & 2 & 2 & C, G \\\hline & 2 & 3 & 4 & I \\\hline K & 0 & 1 & 2 & H \\\hline L & 1 & 2 & 3 & J, K \\\hline FINISH & 0 & 0 & 0 & E, F, L \\\hline \end{tabular}