Use the data to answer the questions

1.

Problem #2 Suppose you are considering crashing a project. The project's network diagram (AON format) is in the Problem-2 Data Worksheet, along with the table identifying the activities and crash costs for all the tasks. (50 points) 2.1 2.2 2.3 2.4 2.5 Calculate the number of days available and crash cost per day for each of the activities (10 points) What are the project paths and lengths? What is the critical path? (10 points) What is the normal cost of the project? (5 points) Crash the project (shorten the project duration) by three days. List the activities for the rst, second, and third crashes and the total crash (additional) cost. (15 points) Your boss comes in and asks you if it's possible to shorten the project by one more day. She tells you the project cost is $1500.00fday. What do you tell her? Can you do it? What activity do you shorten, and what is the additional cost? (10 points) Immediate Optimistic Time Most Likely Time Pessimistic Time Activity Predecessor Estimate (a) Estimate (m) Estimate (b) none 6 A A A H W W AH N N HAHN X - -IGTMOOD H,I,JNormal Crashed Duration Total Cost Duration Total Cost (in G Activity (day) (in $US) (day) $US) B E 1,000 N $ 4,000 A 5 1,800 4 3,000 2,500 W 4,600 2,700 Co 4,050 WUVIA 2,400 6 4,400 3,500 7,100 C D F 2,400 3,800Immediate Activity Predecessor Duration none none A A A HW WHWON InTMOOD B B,D C,F E,GProblem #3 Using the Problem-3 Data Worksheet, answer the following questions (25 points) 3.1 Calculate each activity's early start, early finish, late start, and late finish. (10 points) 3.2 Calculate the slack time for each of the activities. (10 points) 3.3 What is the project's critical path, and what is its length? (5 points)Problems Problem #1 Assume you are managing a project; the project information is in the Problem-1 Data worksheet. (75 points) 1.1 Calculate the expected time, variance, and standard deviations for each of the activities (10 points) 1.2 Calculate each path's expected time, path variance, and standard deviation. What is the critical path? (20 points) 1.3 Estimate the probability of finishing the project in 27 days or less. (15 points) 1.4 You learn you can receive a significant bonus if the project finishes in 24 days or less. What is the probability of this occurring? (15 points) 1.5 To provide your top managers with at least a 99% assurance of finishing on time, how long should the project's duration be? (15 points)