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Math Help - Please someone to check this answer for statistics, its taken me days!!

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    Exclamation Please someone to check this answer for statistics, its taken me days!!

    I have attached the question with the charts.

    Here is my answer:

    I know that I have A1, A1a, and A2 correct. What I need help on are these answers I have come up with:

    For A3a. I have the answer: Expected duration of the entire project A-C-E-H-J = 27 weeks B-D-H-J = 33 weeks B-F-G-I-J = 33.5 weeks

    For A3b. I have the answer: slack for project a = 33.5-27 = 6.5 weeks

    For A3c. I have the answer: slack for project task H = 33.5-33 = 0.5 weeks

    For A3d. I have the answer: the week project task F is scheduled to start 8th week.

    For A3e. I have the answer: the week project l is scheduled to finish 30th week.

    For A4. I have the answer: Determine the probability of completing this project in time for the product launch in 34 weeks. (D-S)/Square root V = 34-33.5/6.53^.5 = .5/2.5553 = 0.2 Probability = .0793 or 7.93%

    I know that I have B1, B2 and C1 correct What I need help on is:

    For C2. I have the answer: Both tasks should be crashed by the maximum possible: 4.5 weeks for Task D and 4 weeks for Task F for a total time saving of 8.5 weeks.

    For C3. I have the answer: Taken individually, crashing cost will come to $8,000 across all 4.5 weeks Task D will be compressed while the corresponding cost to save 4 weeks on Task F will come $4,000.


    I have been working on this problem for about 2 weeks now. It's tough, but it's the last problem before I finish this class. PLEASE HELP!!!!!
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