When analyzing a particular chain of activities within a CPM schedule, what do differing total float values indicate? Some activities are date constrained. The schedule has too little detail to reflect an accurate critical path. Certain activities in the critical path have no successors or predecessors. The schedule is projecting an "on-time completion".

When analyzing a particular chain of activities within a CPM schedule, what do differing total float values indicate?

1. 1. Some activities are date constrained.
   2. The schedule has too little detail to reflect an accurate critical path.
   3. Certain activities in the critical path have no successors or predecessors.
   4. The schedule is projecting an "on-time completion".