a) The probability that the project will be completed in 15 months = (round your response to four decimal places). week: \begin{tabular}{cccc} \hline Activity & Duration (weeks) & Precedes & Crash Cost/Week \\ \hline A (start) & 1 & B, C & $400 \\ B & 1 & E & $100 \\ C & 4 & F & $200 \\ E & 2 & F & $300 \\ F (end) & 2 & & $400 \\ \hline \end{tabular} activity down to 0 weeks duration. \begin{tabular}{cc} \hline Each Activity \\ Activity & Should be Reduced BY (days) \\ \hline A & week(s) \end{tabular}