Operation research is the decision making field used to yield the simplest view of the complex problems with the use of collection of mathematical techniques and tools which work with the utilization and the allocation of scarce resources. Network analysis or Network scheduling is one of the techniques used in the operation research which is used for planning, scheduling and controlling of large Projects. These are based on the representation of the Project as a network of activities (1).Thus, analysis of network can be done by two techniques:-PERT (Project Evaluation and Review Technique)...

In the modern world of computers and information technology, the importance of statistics is very well recognized by all the disciplines. Statistics has originated as a science of statehood and found applications slowly and steadily in Agriculture, Economics, Commerce, Biology, Medicine, Industry, planning, education and so on. As on date there is no other human walk of life, where statistics cannot be applied.Statistics is a very broad subject, with applications in a vast number of different fields. In generally one can say that statistics is the methodology for collecting, analyzing,...