Problem 5-12 The following table represents a plan for a project: PREDECESSOR JOB(S) TIMES (DAYS) JOB NO. a m b 1 1 3 8 2 1 3 3 6 3 1 3 6 12 4 1 5 7 12 5 2 3 6 12 6 3 1 2 3 7 4 2 9 10 8 5,6 2 4 6 9 8 2 4 12 10 7 4 4 7 11 9,10 2 11 11 b. Indicate the critical path. 1-3-6-8-9-11 1-2-5-8-9-11 1-2-5-8 1-4-7-10-11 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? 1. Reduce job 6 by two days. Yes No 2. Reduce job 4 by two days. No Yes 3. Reduce job 9 by two days. No Yes e. What is the probability that the project will take more than 35 days to complete? (Round your answer to 2 decimal places.) Probability

Problem 5-12 The following table represents a plan for a project: PREDECESSOR TIMES (DAYS) JOB NO JOB(S) a mb 1 13 8 2 1 3 3 6 3 1 3 6 12 4 1 5 7. 12 5 2 3 6 12 6 3 3 12 3 7 4 2 9 10 B 5,6 2 4 6 9 8 2 4 12 10 7 4 4 7 11 9,10 2 11 11 b. Indicate the critical path. O 1-3-6-8-9-11 O 1-2-5-8-9-11 O 1-2-5-8 1-4-7-10-11 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? 1. Reduce job 6 by two days. , O Yes No 2. Reduce job 4 by two days. No O Yes 3. Reduce job 9 by two days. No O Yes e. What is the probability that the project will take more than 35 days to complete? (Round your answer to 2 decimal places.) Probability