Draw a network diagram and answer the questions below:
(Please show all your workings or explanation; simple answers alonewill not account for full marks)

• Activity 1 can start immediately and has an estimated duration ofthree weeks.
• Activity 2 can start after activity 1 is completed and has anestimated duration of three weeks.
• Activity 3 can start after activity 1 is completed and has anestimated duration of six weeks.
• Activity 4 can start after activity 2 is completed and has anestimated duration of eight weeks.
• Activity 5 can start after activity 4 is completed and afteractivity 3 is completed. This activity takes four weeks.
. The resource working on activity 3 is replaced with anotherresource who is less experienced. The activity will now take 10weeks. How will this affect the project?
Questions are:
6. Using the original information, after some arguing betweenstakeholders, a new activity 6 is added to the project. It willtake 11 weeks to complete and must be completed before activity 5and after activity 3. Management is concerned that adding theactivity will add 11 weeks to the project. Another stakeholderargues the time will be less than 11 weeks. Who is correct?

7. Based on the information in number 6 above, how much longer willthe project take?