Problem 4-12 (Static) The following table represents a plan for a project: TIMES (DAYS) PREDECESSOR JOB N0. JOB(S) a m b 1 2 3 4 2 1 1 2 3 3 1 4 5 12 4 1 3 4 11 5 2 1 3 5 6 3 1 2 3 7 4 1 8 9 a 5, 6 2 4 6 9 8 2 4 12 1o 7 3 4 5 11 9, 10 5 7 8 l b. Indicate the critical path. 0 14710-11 O 1258911 O 1368911 c. What is the expected completion time for the project? (00 not round intermediate calculations. Round your answer to 2 decimal places.) d. You can accomplish any one of the following at an additional cost of $1,500. If you will save $1,000 for each day that the earliest completion time is reduced, which of the following actions should be taken, if any? 1. Reduce job 5 by two days. O Yes O No 2. Reduce job 3 by two days. O Yes O No 3. Reduce job 7 by two days. O Yes O No e. What is the probability that the project will take more than 30 days to complete? (Use Excel's NORMSDIST() function to find the correct probability for your computed Z-value. Other than the expected completion time you entered in part c above, do not round intermediate calculations. Round "z" value to 2 decimal places your final answer to 4 decimal places.) Probability