7 LO5-3 The following activities are part of a project to be scheduled using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) A 6 B A C A 7 C B. D 4 F D G E, F 7 a. Draw the network. b. What is the critical path? c. How many weeks will it take to complete the project? d. How much slack does activity B have?8. Schedule the following activities using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS ) A B A C A D B E C. D F D G F H E, G a. Draw the network. b. What is the critical path? c. How many weeks will it take to complete the project? d. Which activities have slack, and how much?9. The RAD department is planning to bid on a large project for the development of a new communication system for commercial planes. The accompanying table shows the activities, times, and sequences required: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS ) A A A A B 6 C, D 6 D. F 2 D 3 E, G. H a. Draw the network diagram. b. What is the critical path? c. Suppose you want to shorten the completion time as much as possible, and you have the option of shortening any or all of B, C, D, and G each one week. Which would you shorten? d. What is the new critical path and earliest completion time