Budget - Please show working and explain

b) The table below gives an estimated time for project activities along with an estimated budget for each activity. Time (months) Activity ON A B D E 4 5 4 3 2 3 29 Budget () 50,000 90,000 33,000 80,000 60,000 20,000 35,000 21,000 379,000 G H total At month 21 only task A, B, and C have been completed and the actual spend is 250,000 Calculate the following; i. The planned spend ii. Earned Value (budget for completed tasks). Tii. Cost Performance Indicator (earned value actual spend) iv. Schedule Performance Indicator (earned value / planned spend) V. Estimated Cost at Completion vi. Estimated Time of Completion Comment on the results of your analysis and suggest corrective action. (8 marks) c) Discuss why it is essential that enough resource should be included in plans to allow for project completion and review. (6 marks)