pls help!

(a) Compute ES, EF, LS, LF, slack for each activity. (7 points) (b) What is(are) the critical path(s) and the minimum time to complete the project? ( 3 points) Critical path(s): START ACG FINSH Minimum time to complete the project: 7+3+10=20 (c) Assume that variances for activity A,B, and C are 1 . The variances for activity D and E are 0.75. The variances for activity F,G and H are 2. What is the project standard deviation? Show your work. Round to three decimal points. (2 points) (d) Calculate the probability of completing the project in 19 weeks. ( 3 points)