HELPPP

Problems Activity Activity Time (days) Immediate Predecessor(s) A 7 B 2 C 4 A The OM Explorer and POM for Windows software is available to all students using the 10th edition of this textbook. Go to www.pearsonhighered.com/krajewski to download these computer packages. If you purchased MyOMLab, you also have access to Active Models software and significant help in doing the following problems. Check with your instructor on how best to use these resources. In many cases, the instructor wants you to understand how to do the calculations by hand. At the least, the software provides a check on your calcula- tions. When calculations are particularly complex and the goal is interpreting the results in making decisions, the software re- places entirely the manual calculations. 1. Consider the following data for a project: D 4 B,C E 4 D F 3 E G 5 E Activity Activity Time (days) Immediate Predecessor(s) A 2 a. Draw the network diagram for this project. b. Determine the critical path and project duration Calculate the slack for each activity. 3. A project for in proving a billing process has the following precedence relationships and activity times: B 4 C 5 D 2 B Activity Immediate Predecessor(s) Activity Time (weeks) 3 E 1 B F 8 B,C 11 G 3 DE 7 H 5 F D 13 B, C -- 4 F E 10 B J 7 G, H, 1 F 6 D G 5 E D. Crasha possible H 8 a. Draw the network diagram. b. Calculate the critical path for this project. C. How much slack is in each of the activities G, H, and I? 2. The following information is known about a project. F,G a. Draw the network diagram. b. Calculate the slack for each activity. Which activities are on the critical path? 4. Calculate Slack A crash possible