19) 19) A simple CPM network has three activities, A, B, and C. A is an immediat

Question

19) 19) A simple CPM network has three activities, A, B, and C. A is an immediate predecessor of B and of is an immediate predecessor of C. The activity durations are A-4, B-3, C-8. A) The network has no critical path. B) The critical path cannot be determined without knowing PERT expected activity times. C) The critical path is A-B-C, duration 13.5 D) The critical path is A-C, duration 12. E) The critical path is A-B-C, duration 15. C. B 0) For a given product demand, the time-series trend equation is 53- 4x. The negative sign on the slope of the equation: A) implies that the coefficient of determination will also be negative. B) implies that the cumulative error will be negative C) is an indication that the forecast is biased, with forecast values lower than actual values. D) is an indication that product demand is declining. E) is a mathematical impossibility

Explanation / Answer

19) Answer

A) the network has no critical path

20) answer

D) is an indication that product demand is declining.

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