Q2) Draw the network & Calculate the critical path for the activities of the project? Activity Predecessor Duration A B C AAB S45634 D E C F D, E

2.1: For each of the following projects, determine the shape of its life cycle (S or J): SOLUTION (Answer just near the name of the project) • Building a nuclear station for electrical power generation– • Achieving an ILETS minimum score – • Organizing a wedding party – • Getting a masters degree in engineering management –

The expected times and variances for the project activities are given below, critical path is A-D-F-H. What is the probability of the completing the project in 31 periods? ID A B C D E F G H Description Pilot production Select channels of distribution Develop program Test market Patent Full production Ad promotion Release 55% 77% 88% 66% Predecessor None None None A A D C B,E,F,G 6 7 4 4 10 16 3 2 Variance [(b-a)/6]2 3 4 2 2 5 10 2 1

The following information is available about a project toorganize an event to honor the mayor of West Allis at theNathan Hale High School:Activity Activity Time (days) Immediate Predecessor(s)A 3 —B 4 —C 5 —D 4 —E 7 AF 2 B, C, DG 4 E, FH 6 FI 4 GJ 3 GK 3 Ha. Draw the network diagram.b. Find the critical path.

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A project has the following activities, with specified precedents and expected durations (in days). What is the expected project duration?

Q2: A company invested an amount of $85,000 to implement a project, and the expected receipts from this project during the 5 years were as follows: End the year 11/ 2 $25,000 Receipts() $10,000 3 $35,000 4 $45,000 5 $30,000 Find I.R.R and determine if the project is desirable or not If the MARR was 16%?

The following table shows estimates of activity times (in weeks) for a project: Optimistic Time 5 Activity A B с D EFG 1 4 5 6 2.5 7.5 Most Probable Time 5.5 3 5 5.5 7 b. What is the probability that the project will be completed within 31 weeks? 3 8.5 Suppose that the critical path is A-C-D-E-G. Use Appendix A to answer the questions. Do not round intermediate calculations. Round your answers to three decimal places. a. What is the probability that the project will be completed within 34 weeks? d. What is the probability that the project will be completed in 33 weeks? C. What is the probability that the project will be completed in more than 32 weeks? Pessimistic Time 9 5 6 9 8 3.5 12.5

A publisher has rest signed a contract for the publication of a book. What is the earliest time that the book can be ready for distribution ? The tasks in the table are involved, with the estimates given in weeks. Activity Precedence F H E C, D | F. G Most likely 3 6 8 Optimistic 2 3 3 6 Pessimistic 2 3 12 5 3 16 1 i) Draw a network and find the critical path, what is the expected length of the critical path and what is its variance ? ii) What is the probability that the length of the critical path does not exceed a) 32 weeks b) 36 weeks. A AN 8 4 10 B www 2 с D A 6 A, B 2 1 4 E C, D 4 (33 E 4 3 5 $ 9 1 1

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