Question: 1. Draw the network from the table below, find the critical path, the slack times of the activities, and the minimum cost that Mr X

1. Draw the network from the table below, find the critical path, the slack times of the activities, and the minimum cost that Mr X manage at the State University by 4 days

Activity Predecessors Normal time (days) Crash time (days) Normal Cost $ Crash Cost $ Crash cost/day

A none 4 3 2000. 2600

B none 4 3 2200 2400

C none 14 12 500 600

D A 5 4 2300 2600

E B 8 7 900 1200

F D & E 3 1 1400 1600

2. Given the data below, forecast:

Year Mileage

1 3000

2 3800

3 3500

4 3800

5 3700

a. the 6th year using the weighted moving average w/weights .7 & .3

b.The 6th year using Exponential Smoothing with F1 =3000 and alpha = .7

c.Calculate the MAD for a and b, tell me which one is the best model

d. Calculate the regression line, the forecast for the 6th and the 12th years, the residual of the 4th year, and tell me if it is s good or a bad model

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