Question: Problem 13-21 Consider the following project network and activity times in days): A E Start Finish B F G Activity A B C D E

Problem 13-21 Consider the following project

Problem 13-21 Consider the following project network and activity times in days): A E Start Finish B F G Activity A B C D E F G 2 5 5 6 2 2 Time 3 5 The crashing data for this project are as follows: Activity A B D E F G Time (days) Normal Crash 3 2 2 1 5 3 5 3 6 4 2 1 2 1 Cost ($) Normal Crash 800 1400 1200 1900 2000 2800 1500 2300 2800 600 1000 500 1000 1800 a. Identify the critical activities and find the expected project completion time. Activity Critical A B D E F G Project Completion Time = days b. What is the total project cost using the normal times? $

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