1. Develop an AON network diagram and determine the probability that the project can be completed within 46 days or less.

2. What activity do you crash to reduce the project by 5 days? What is the added cost? The difference between optimistic time (a) and most likely time (m) is the maximum number of days an activity can be crashed. Show the activity/activities to crash for each day, i.e., 1^st day, 2^nd day, 3^rd day, etc.

Activity Predecessor Time (Days) a m 4 3 a none a NNW b 4 b 1 e f 2 4 b 6 5 5 3 5 5 4 4 g e f f PN N J 1 8 k 1 Description Excavation, pour footers Lay foundation Frame and roof Sewer (floor) drains Install insulation Pour basement floor Install windows Rough electrical wiring Install furnace Exterior brickwork Install plasterboard Roof shingles Attach gutter Grading Lay subflooring Lay driveway Kitchen, sink, appliances Painting Finish wood floor 0,8 i jik 1 3 5 6 2 Average Crash Cost/dsy $10 $22 $15 $21 $25 $14 $18 $18 $11 $16 $18 $23 $25 $12 $18 $23 $18 $17 $25 m n o n 1 2 U OWN WOONW p O m 3 4 6 5 7 6 10 8 10 8 r t 2 q t V 4 2 w V