A business organisation is trying to improve staff morale and motivation and has decided to replace the existing staff canteen with a modern cafeteria. The works department has drawn up a detailed list of the various activities that will need to be completed, together with an estimate of how long each activity will take and the sequencing of activities. This information is shown in Table 13.11 List Activity Duration Preceding activities personal requirement A Purchase construction materials 12 Weeks   3 B Purchase catering equipment needed for new cafeteria 3 Weeks   2 c Appoint supervisory architect 2 weeks   1 d Clear site 3 weeks   3 e Produce final building details 8 weeks C,D 1 f Prepare site for construction 3 weeks E 2 g Construct cafeteria 12 weeks A,F 5 h lnstall utility services 4 weeks G 2 i lnstall catering equipment 4 weeks B,H 2 j Decorate internally 2 weeks B,H 2 k Stock cafeteria 4 weeks I,J 1 l Hire catering staff 8 weeks   2 m Train staff on site 2 weeks I,L 3 (a) Using this information construct a network diagram for the proiect. (b) Identify the critical path. (c) Determine float times for all activities. (d) To try to keep the project within budget it has been decided that ideally no more than five personnel should be involved in the project at any one time. Is this feasible?