Lindsey Brinton is moving into a rental house near campus at the beginning of the new fall semester at Tech with three friends. Each of the four friends will have a bedroom that they can redecorate as they wish. Lindsey wants to wallpaper her room and put down new carpet, and she has identified the following activities and the times they will take that she will need to accomplish to complete the project before school starts.

Activity Description Activity Predecessor Time Estimate (hours)
a Clean walls — 6 b Wash and clean woodwork a 4 c Select and buy paint — 6 d Paint woodwork (first coat)

b, c 5 e Fill holes a 3 f Select and buy wallpaper

b, c 4 g Paper walls

d, e, f 10 h Paint woodwork (second coat) d 4 i Lay new carpet g, h 8 Construct the network for this project, identify the critical path, and determine the project duration time.