Your company has just received an order from a good customer for a specially designed electric motor. The contract states that, starting on the 13th day from now, your firm will experience a penalty of $100 per day until the job is completed. Indirect project costs amount to $200 per day. The data on direct costs and activity precedence relationships are given in Table 7.2. 

a. Draw the project network diagram.
b. What completion date would you recommend?

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Activity Normal Time (days) A 4 7 5 6 3 11 4 3 B C D E F G H Normal Cost ($) 1,000 1,400 2,000 1,200 900 2,500 800 300 Crash Time (days) Crash Cost ($) 3 1,300 4 2,000 4 2,700 5 1,400 2 1,100 6 3,750 3 1,450 1 500 Immediate Predecessor(s) None None None A B C D, E F, G