Hello! I'm having trouble with this practice problem. I'm not too sure what I'm doing wrong. Thank you for your help!

The manager of the Oak Hills Swimming Club is planning the club's swimming team program. The first team practice is scheduled for May 1. The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows. Time (Weeks) Activity A B D E F G H I Description Meet with board Hire coaches Reserve pool Announce program Meet with coaches Order team suits Register swimmers Collect fees Plan first practice Immediate Predecessor This answer has not been graded yet. A A B, C B A D G E, H, F Optimistic (a) Draw a project network. (Submit a file with a maximum size Choose File No file chosen 1 4 2 1 2 1 1 1 1 1 MB.) Most Probable 1 6 4 2 3 2 2 2 1 Pessimistic 2 8 00 6 3 4 3 3 3 1 (b) Develop an activity schedule. (Round your answers to two decimal places.) Activity A B C D E F (5) G H I [ Earliest Start T Latest Start Earliest Finish Latest Finish (c) What are the critical activities? (Enter your answers as a comma-separated list.) T Slack What is the expected project completion time (in weeks)? (Round your answer to two decimal places.) weeks (d) If the club manager plans to start the project on February 1, calculate the probability the swimming program will be ready by the scheduled May 1 date (13 weeks) based solely on the critical path. (You may need to use the appropriate technology to answer this question. Round your answer to four decimal places.)