Problem 5-12

The following table represents a plan for a project:

b. Indicate the critical path.

c. What is the expected completion time for the project? (Round your answer to 2 decimal places.)

Expected completion time ________ days

d. You can accomplish any one of the following at an additional cost of $2,000 and if you will save $1,500 for each day that the earliest completion time is reduced, which action, if any, would you choose?

e. What is the probability that the project will take more than 35 days to complete? (Round your answer to 2 decimal places.)

Probability _____________

JOB NO. 1 2 3 4 5 6 7 8 9 10 11 PREDECESSOR TIMES (DAYS) JOB(S) m b 1. 3 8 1 3 3 6 1 3 6 12 1 5 7 12 2 3 6 12 3 1 2 3 4 2 9 5,6 2 4 6 8 2 4 12 7 4 4 7 9,10 2 11 11 10 O 1-2-5-8 O 1-4-7-10-11 O 1-2-5-8-9-11 O 1-3-6-8-9-11 1. Reduce job 6 by two days. Yes No 2. Reduce job 4 by two days. Yes No 3. Reduce job 9 by two days. No Yes