Problem 3.19b Question Help Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a new contract are given in the following table: Time (days) b Time (days) Immediate Predecessor(s) Activity a m Activity a m b 4 7 G 1 2 3 A B C 8 5 3 4 H 9 2 Immediate Predecessor(s) A, E F G HI 3 4 5 10 14 1 7 11 16 12 18 D 7 8 9 E 2 4 6 B, D A, E K 4 8 12 F 7 11 14 This exercise contains only parts b, c, and d. b) Activities on the critical path for the project are C-D-E-F-H-K. The total project completion time is days. (Round your response to two decimal places.) c) For the given project, the earliest start (ES) and earliest finish (EF) are: (Round your responses to two decimal places.) ES EF Activity A B D E F G H OOOOO J Enter your answer in each of the answer boxes. For the given project, the latest start (LS) and latest finish (LF) are: (Round your responses to two decimal places.) LS LF Activity K J 1 H G F E D B d) Referring to the standard normal table, the probability that Kelle Carpet and Trim will finish the project in 42 days or less is round your response to two decimal places.) (Enter as a probability and