Pleases provide step by step instructions

Problem 17-12 (Static) A project manager has compiled a list of major activities that will be required to install a computer information system in her firm. The list includes estimated completion times for activities and precedence relationships. Use Table B1 and Table B2. Immediate Predecessor Activity A D E H F G B I J M N o End A D E A F - B I 3 - M N H, G, K, O Estimated Times (weeks) 2-4-6 6-8-10 7-9-12 2-3-5 3-4-8 5-7-9 2-2-3 2-3-6 3-4-5 4-5-8 5-8-12 1-1-1 6-7-11 8-9-13 Click here for the Excel Data File a. Determine the mean and standard deviation for each of the following paths in the project. (Round Mean and Standard Deviation to 2 decimal places.) Path Mean Std. Dev. a-d-e-h a-f-g b-i-j-k C-m-n-o b. If the project finishes within 26 weeks of its start, the project manager receives a $1,000 bonus. What is the probability of a $1,000 bonus? (Round z-value to 2 decimal places, and probability to 4 decimal places.) Probability ($1,000) c. If the project finishes within 27 weeks of its start, the project manager receives a $500 bonus. What is the probability of a $500 bonus? (Round z-value to 2 decimal places, and probability to 4 decimal places.) Probability ($500)