Solve exercise 3 using the Monte Carlo approach described in the text. For simplicity, assume that the distribution of perfoqnance times for each activity is rectangular between the limits given by a and

b. Using a table of random numbers that are uniformly distributed on the range from 0 to 1, given in most standard statistics texts, transform them to the distribution required for each of the activities in Figure 9-20. For example, activity 2-3 has a possible range of 3 to 7, or 4 time units, and a mean of 5. Letting r denote a random number uniformly distributed on the interval 0 to 1, then, t = 3 + 4r, will be uniformly distributed on the range 3 to 7 as desired. Decide for yourself how many simulations of the network should be made, and express the results in a form such as given in Figures 9-18 and 9-19.

Discuss your results.