Hi! I just need help with problem B. I know that a1 and a2 are correct, but I wanted to include them in case the information was helpful.

b. Calculate slack for every project activity. (Leave no cells blank - be certain to enter "O" wherever required.) Latest Completion Latest Start Slack Task Immediate Successors F None E F DF DE B D A B, C 00 A Problem 15-9 (Algo) Given the following project network: TaskB 4 weeks Task D 4 weeks Task A 4 weeks Task F 7 weeks Task 4 weeks Task E 8 weeks a-1. Identify the critical path. A-C-D-F A-C-E-F O A-B-D-F a-2. Identify the earliest start and finish for each task. (Leave no cells blank - be certain to enter "O" wherever required.) Task Immediate Predecessors None A B Earliest Start o weeks 4 weeks 4 weeks 8 weeks 8 weeks 16 weeks Earliest Completion 4 weeks 8 weeks 8 weeks 12 weeks 16 weeks 23 weeks D B, C E E F DE