solve theses questions??please explain the every single point in questions??

You are the assistant project manager to Rassy Brown, who is in charge of the Nightingale project. Nightingale was the code name given to the development of a handheld electronic medical reference guide. Nightingale would be designed for emergency medical technicians and paramedics who need a quick reference guide to use in emergency situations. Rassy and her project team were developing a project plan aimed at producing 30 working models in time for MedCON, the biggest medical equipment trade show each year. Meeting the MedCON October 25 deadline was critical to success. All the major medical equipment manufacturers demonstrated and took orders for new products at MedCON, Rassy had also heard rumors that competitors were considering developing a similar product, and she knew that being first to market would have a significant sales advantage. Besides, top management made funding contingent upon developing a workable plan for meeting the MedCON deadline. The project team spent the morning working on the schedule for Nightingale. They started with the WBS and developed the information for a network, adding activities when needed. Then the team added the time estimates they had collected for each activity. Following is the preliminary information for activities with duration time and predecessors: Page 1 of 2 Predecessor None 1 1 1 2,3 2,3 2,3 2,3 2,3 4 4 4 4 Activity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Description Architectural decision Internal specifications External specifications Feature specifications Voice recognition Case Screen Speaker output jacks Tape mechanism Database Microphone/soundcard Pager Barcode reader Alarm clock Computer I/O Review design Price components Integration Document design Procure prototype components Assemble prototypes Lab test prototypes Field test prototypes Adjust design Order stock parts Order custom parts Assemble first production unit Test unit Produce 30 units Train sales representatives Duration 10 20 18 15 15 4 2 2 2 40 5 4 3 4 5 10 5 15 35 20 10 20 20 20 15 2 10 10 15 10 4 5,6,7,8,9,10,11,12,13,14,15 5,6,7,8,9,10,11,12,13,14,15 16,17 16 18 20 21 19,22 23 24 24 25,26 27 28 2 1. Create project network diagram. (10 marks) 2. How long will project take? 3. What is the critical path for the project? 4. How sensitive is this network? (02marks) (02 marks) (Olmarks) The End