Consider the information about a project plan presented in the following table. Duration (days) Immediate predecessor Task Task A B C D E F A B C D E F The following table shows the weekly control reports for the first two weeks (assume 5 working days per each week). A B C D End of week 1 (after 5 days) Actual completed (%) 60% 30% 10% 0% 0% 0% Actual cost $1,500 $3,000 $2,000 0 3 5 4 8 6 8 0 0 Scheduled cost/day $1,000 $2,000 $4,000 $1,000 $2,000 $3,000 100% 100% 100% 90% 50% 0% End of week 2 (after 10 days) Actual completed (%) Actual cost $2,900 $11,000 $13,500 $10,000 $4,000 0 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.