Construct a gantt chart and project network

Question

Problem: Construct a Gantt chart and project network for the following set of activities, compute the length of each path in the network, and indicate the critical path:

Activity                             Activity Predecessor                                       Time (months)

1                                              ___                                                                  4

2                                              ___                                                                  7

3                                              1                                                                      8

4                                              1                                                                      3

5                                              2                                                                      9

6                                              3                                                                      5

7                                              3                                                                      2

8                                              4,5,6                                                                6

9                                              2                                                                      5