Final answer:
The question about crashing project activities to reduce completion time requires additional details to provide a specific response. Information on the critical path, normal and crash durations, and costs associated with each activity is essential to determine which activities can be crashed and by how many days to meet the new deadline.
Step-by-step explanation:
The question posted by the student pertains to the concept of project management, specifically the process of crashing a project schedule to reduce the overall completion time. This involves decreasing the duration of certain tasks or activities in a project at an additional expense, with the aim of meeting a shortened project deadline.
However, without the accompanying table or specific details regarding the activities, their respective durations, costs, and crash limits, it is not possible to provide a meaningful response to the question of how many days each activity should be crashed to reduce the project completion time by 4 days.
In order to advise on how to crash the project, we need to know more about the activities including their normal and crash durations, normal cost, crash cost, and which activities lie on the critical path. This information is crucial as it determines which tasks can be shortened and at what cost.