Johnson Products makes fans for commercial use. The management is contemplating producing smaller fans for residential use. The jobs (or activities) necessary to build an experimential model (such as engineering design, assembly, testing, design revision, etc. labelled by A through G) and related data are provided in the following table. Crash this project to 9 weeks at the least cost. Show your calculation/analysis to develop the solution. Job Normal Crash time (weeks) (weeks) time Normal cost ($) Crash cost Immediate ($) predecessor A 3 2 1,000 1,600 B 2 1 2,000 2,700 C 1 1 300 300 -- D 7 3 1,300 1,600 A E 6 3 850 1,000 B F 2 1 4,000 5,000 C G 4 2 1,500 2,000 D, E