4. Earned Value. (20 points) . Define the following: TBC, CBC, CAC, CEV, CPI, CV, and FCAC. What formulas are used to calculate CEV, CPI, CV, and FCAC (3 methods for FCAC)? Assume you are the project manager and based on your customer's requirements you have determined there are four main tasks in a Dream Backyard project and have assigned each a TBC. Specifically, the customer wants the backyard leveled (Task 1 $15,000); wants a covered outdoor kitchen with a hot tub and firepit (Task 2 - $20,000), a retaining wall with fencing built- in (Task 3 - $25,000), and a pool with waterfall (Task 4- $60,000). You estimate this will take 5 weeks to complete. The costs are budgeted as follows: Budgeted Per Week (in 000's) TBC 1 2 3 4 5 Task 1 15 6 6 3 Task 2 20 2 3 10 4 1 Task 3 25 7 8 6 4 Task 4 60 10 25 20 5 What is the total cumulative TBC? What is TBC at the end of week 4? Assume 4 weeks have passed and these are the actual costs per week: