The following test marketing project is at the end of week 6. Determine the cost and schedule variances, CPI, SPI, ETC and EAC for the project: Duration Actual Activity Predecessors Budget, $ (weeks) Cost (S) Complete a-Build items b-Supply Stores C- Create ad program d- Schedule ads 300 400 100 3 200 180 100 2 250 300 100 600 400 20 e- Check sale results b.c 4 400 200 20