3. Consider the information about a project plan presented in the following table. Task Immediate predecessor Duration (days) Scheduled cost/day Dauw $1,000 $2,000 $4,000 $1,000 $2,000 $3,000 The following table shows the weekly control reports for the first two weeks (assume 5 working days per each week). Task End of week 2 (after 10 days) Actual completed (%) Actual cost End of week 1 (after 5 days) Actual completed A ctual cost (% 100% $2,500 60% $7,000 40% $6,000 0% 0 0% 0 0% 0 100% 100% 100% 60% 20% 0% $2,500 $12,000 $15,500 $8,000 $3,500 0 E a) Use the earned value approach to calculate the cost variance, schedule variance, cost performance index, schedule performance index for the whole project at the end of week 1 and at the end of week 2 b) Use the original estimate approach (budgeted cost) and the revised estimate approach to calculate the projected total cost at completion, respectively at the end of week 1 and at the end of week 2