A B C Activity Predecessor D E F G H conduct a consumer test panel study. Crash Schedule The following data were obtained from a study of the times required to A B C, D C, D E F Time (Weeks) 4 2 6 2 5 4 5 1 Cost Time (Thousands $) (Weeks) 6 5 4 10 4 7 6 9 6 2 5 6 11 6 5 4 Normal Schedule Cost (Thousands $) 4 3 4 4 6 3 2 2 Crash Rate 2 0.5 0.75 0.5 0.5 1.5 0 1 a) Find the all normal schedule and cost. b) Find the least-cost plan to complete the project in 21 days. (Assume minimum partial crashing of 1 week)