Can someone verify whether what I have so far is correct and possibly help me to find the correct probability using the z table provided?

Given a Project with the following activities and data: Activity Expected Time, TE (weeks) Standard Deviation (0) in weeks 2 1 0 3 Critical Path? Yes No Yes No i. . iii. iv. IV. vi. vii. viii. Add Balance Count Deduct Edit Finance Group Hold Yes 3 4 2 1 6 4 2 No Yes 0 Yes Find the following: a. (10 points). What is the Variance for each Activity on the Critical Path? Please place your answers (for Activities on the Critical Path only) in the worksheet (table) below (in column for Variance). (2 points for correct Variance * 5 Activities on the Critical Path = 10 points) Activity i. Add ii. Balance iii. Count | iv. Deduct v. Edit vi. Finance vii. Group viii. Hold Standard Deviation | Variance | Expected Time, TE (0) in weeks (0) (weeks) 2 4 2 1 0 1 0 14 3 19 1 2 2 2 0 4 4 0 6 4 b. (2 point) What is the Sum of Variances across all Activities on the Critical Path? Place your answer in the box below (2 points for correct Sum of Variances * 1 Sum of Variances = 2 points) Sum of Variances (4) in Critical Path c. (2 points) What is the expected Project Duration (u)? Place your answer in the box below 13 weeks Expected Project Duration (u) in Weeks d. (15 points) Using the table on page 5 of this assignment, calculate Expected Project Duration, Sum of Variances in the Critical Path, and Z. Place your answers in the table below and your calculations in the box below. (2 points per "Sum of Variances in Critical Path"* 3 values = 6 points + 2 points per correct "Z" value * 3 "Z" values = 6 points) + 3 points for correct calculations. Probability Desired Project Duration (Weeks) Expected Project Duration (u) in Weeks Sum of Vari- ances (0) in Critical Path 12 13 13 16 13 13 9 9 0 1 -0.3333 .000 .000 Calculations: 12 weeks - (12-13)/3 = -3333 13 weeks -(13-13)/3=0.000 16 weeks - (16-13)/3=1.000 e. (4 points) What is the probability of completing the project in 12 weeks (or less)? Write your answers in the table below. Show your calculations in other box below. (2 Points for correct Probability for 12-Week Project Duration + 2 points for correct calculations) Probability for 12-Week Project Duration or less Calculations: f. (4 points) What is the probability of completing the project in 13 weeks (or less)? ace your answers in the table below (2 Points for correct Probability for 13-Week Project Duration + 2 points for correct calculations) Probability for 13-Week Project Duration or less Calculations: g. (4 points) What is the probability of completing the project in 16 weeks (or less) (2 Points for correct Probability for 16-Week Project Duration + 2 points for correct calculations) Probability for 16-Week Project Duration or less Calculations: h. (4 points) For a 92.5 percent chance of completing the project on time, what are the Required Project Duration and Z-value? (2 points per Value * 2 values = 4 points) + 2 points for correct calculations Z Probability Required Project Duration (Wks.) Expected Project Dura- tion (u) (Wks.) Projec Sum of Variances (0) in Critical Path 92.5% Calculations: TABLE 8.5 Cumulative (Single Tail) Probabilities of the Normal Probability Distribution (Areas under the Normal Curve from-co to Z) Example: The area to the left of Z = 1.34 is found by following the left 2 column down to 1.3 and moving right to the .04 column. At the intersection read .9099. The area to the right of 2 = 1.34 is 1-.9099 =.0901. The area between the mean (center line) and Z = 1.34 is 9099 - 5 = 4099. AD | 15517 | -6293 6985 7673 11 | 18106 18365 8289) I TTTTTT11111 5000 5398 5793 6179) 6554 6915 7257 7580 7881 8159 84131 8643 8849 19032 19192 19332 19452 19554 9641 19713 9772 19821 19861 9893 LLLLLLLL|||||||||||||| 10. 02 03 04 051 50401 15080 5120 | 5160 5199 15438 5478 1.5557 5596 5832 5871 5910 5948 5987 1,6217 6255 | 1.6331 | 16368 6591 6628 6664 67001 1.6736 1,6950 7019 170541 | 7088 7291 7324 7357 7389 | 7422 7611 7642 1 | 7734 7910 7939 ,7967 | 17995 1,8023) 8186 18212 1 8238 1.8264 18438 18461 1 8485 1.8508 18531 8665 8686 8708 8729 18749 1.8869 8888 8907 1.8925 .8944 9049) 9066 9082 1 19099 9115 192071 19222 9236 9251 | 1.9265 19345 19357 9370 19382 19394 19463 19474 9484 9495 19505 19564 19573 19582 19591 19599, | 19649 9656 9664 1 19671 19678 197191 19726 1 9732 1 19738 1 9744 19778 9783 1 19788 19793 1 19798 19826) 19830 1 19834 19838 19842 198641 19868) 19871 19875 | 19878 19896 19898 19901 19904 9906 199201 19932 1 19925 19927 19929 | 19940 19941 | 19943 19945 | 19946 19955 19956 1 19957 19959 19960 19966 19967 19968 19969 19970 19975 19976 19977 19977 19978 19982 | 19982 19983 1 19984 | 19984 199871 19987 19988 19988 19989 19991 9991 19991 19992 19992 19993 19994 19994 19994 .9994 9995 19995 19996 | 9996 1 1.9996 9997 9997 9997 9997 9997 1.5239 | 5279 5636 5675 6026 6064 64061 6443 6772 16808 17123 17157 7454 7486 17764 7794 8051 | 18078 8315 8340 8554 8577 18770 8790 1.8962 | 1,8980 19131 1 19147 19279 1 19292 19406 9418 9515 9525 19608 9616 9686 19693 19750 19756 9803 9808 9846 9850 19881 19884 19909) 19911 9931 1 19932 19948 9949 19961 19962 19971 19972 19979 19979 19985 19985 19989 19989 19992 9992 19994 19996 9996 9997 9997 09 5319) 5359 5714 5753 6103 6141 1 1.6480 16517 6844 6879 1.7190 17224 7517 7549 7823 1 7852 1.8133 8389 8599) 1,8621 18810 18880 1.8997 19015 19162 19177 19306 9319 194291 19441 19535 19545 1,9625 19706 9767 9812 1 19817 19854 | 19857 19887 19890 19913 19916 19934 19936 19951 19952 19963 19964 19973 19974 19980 9981 19986 | 19986 9990 1.9990 19993 19993 19995 19995 19996 19997 9997 9998 19633 9699) 9761 1 9918 1 19938 9953 19965 19974 9981 19987 19990 19993 9995 19997 19995