I just need how to find part e. Is there a way to find normal distribution without excel? I will give a thumbs up for answering

The following table represents a plan for a project: PREDECESSOR TIMES (DAYS) JOB NO. JOB(S) a m b 1 2 4 9 1 2 2 11 3 1 2. 4 6. 4 1 3 7 8 5 2 2 3 4 6. 3 1 2 6 7 4 3 5 10 8 5,6 1 3 5 9 8 1 . 12 10 7 3 4 11 9.10 6 b. Indicate the critical path. 1-4-7-10-11 1-2-5-8 1-3-6-8-9-11 1-25-8-9-11 c. What is the expected completion time for the project? (Round your answer to 2 decimal places.) Expectes completion time 25 days a. You can accomplish any one of the following at an additional cost of $1.500 and if you will save $1,000 for each day that the earliest completion time is reduced which action, if any, would you Choose 1. Reduce job 5 by two days The following table represents a plan for a project: JOB NO 1 2 3 4 5 6 7 8 9 10 11 PREDECESSOR TIMES (DAYS) JOB(S) a m 6 2 4 9 1 2 2 11 1 2 4 6 1 3 7 8 2 2 3 4 3 1 2 6 4 3 5 10 5.6 1 3 5 8 1 2 12 3 4 5 9.10 1 6 b. Indicate the critical path. DO 1-4-7-10-11 O 1-2-5-8 O1-3-6-8-9-11 e 1-2-5-8-9-11 c. What is the expected completion time for the project? (Round your answer to 2 decimal places.) Expected completion time 25 days d. You can accomplish any one of the following at an additional cost of $1.500 and if you will save $1,000 for each day that the earliest completion time is reduced, which action, if any, would vou choose? 1. Reduce job 5 by two days. Yes ONO 202 PM O1-3-6-8-9-11 O 1-2-5-8-9-11 c. What is the expected completion time for the project? (Round your answer to 2 decimal places.) Expected completion time 25 days d. You can accomplish any one of the following at an additional cost of $1,500 and if you will save $1,000 for each day that the earliest completion time is reduced, which action, if any, would choose? 1. Reduce job 5 by two days. Yes ONO 2. Reduce job 6 by two days. O No Yes 3. Reduce job 7 by four days. No O Yes e. What is the probability that the project will take more than 29 days to complete? (Round your answer to 2 decimal places.) Probability