Given forecast errors of -1, 2, 6, and -3, what is the mean absolute deviation?

2

3

4

8

16

Which of the following statements regarding CPM is true?

The critical path is the shortest of all paths through the network.

The critical path is that set of activities that has positive slack.

Some networks have no critical path.

All activities on the critical path have their LS equal to the maximum EF of all immediate predecessors.

The Dulac Box plant works two 8-hour shifts each day. In the past, 700 cypress packing boxes were produced by the end of each day. The use of new technology has enabled them to increase productivity by 20%. Productivity is now approximately

		32.5 boxes/hr
		40.6 boxes/hr
		52.5 boxes/hr
		81.25 boxes/hr
		300 boxes/hr

The critical path for the network activities shown below is with duration Immediate Activity Duration Predecessors A 4 5 A C 7 D 4 A E 5 B,C,D A-B-D; 10 A-B-E; 14 C-E; 12 A-D-E; 13 A-B-C-D-E; 22