Question: 8) Activity Immediate Predecessor Time (Days) A 2 B C D B E A, D C E, F 5 1 10 3 F G

8) Activity Immediate Predecessor Time (Days) A 2 B C D B E A, D C E, F 5 1 10 3 F G What is the expected project completion time in days? List the slack times. 6 8 9) Activity A - B - C D E Immediate Predecessor Normal Time Crash Time Normal Cost Crash Cost (Months) (Months) 6 4 $2,000 $2,400 7 5 3,000 3,500 A 7 6 1,000 1,300 B 6 4 2,000 2,600 9 8 8,800 9,000 Based on the above, list the crash cost per month for the different activities. What is the least cost of reducing the project completion date by 3 months? 10) Activity Immediate Predecessor(s) Time Optimistic Most Likely Time (weeks) Time Pessimistic (weeks) (weeks) A - 2 3 B 2 3 4 C A 4 5 6 D B 8 9 10 E C, D 2 5 8 F D 4 5 6 G E 1 2 3 What is the probability of completing the project in 20 weeks? 11) What are the pros and cons of quantitative and qualitative forecasting techniques? 12) What are the pros and cons of time series and associative models of forecasting? 13) What sort of disruptions to operations can bad forecasts cause? Explain with two examples.

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