In the critical path method, slack is best described a measurement of what? The difference between an activity's normal cost and its crash cost The difference between an activity's early start and late start times The difference between an activity's early start and early finish times The difference between the duration of two precedent activities Question 4 2.4pt Which of the following statements is incorrect with respect to project management? Building a house can be considered a project. The critical path method can help identify slack in activities. The goal of project crashing is to reduce project completion time in the most cost-effective way. Project managers need to make sure they always give the top priority to project schedule rather than project cost and performance requirements