The book offers a simple treatment of statistical methods as applied to Education, Psychology, Sociology, Economics, Commerce, Management, Social Work and Biological Sciences. The main emphasis is on generating an understanding of concepts, applications and procedures involved in statistical analysis of experimental and observational data. The book is the outcome of the author’s long experience of teaching postgraduate classes and tryouts on students for several sessions to obtain their feedback as to how this subject could be best understood. All Parametric and Non-parametric tests have been presented in a manner that would be convenient even to the non-mathematical mind. The student can easily grasp the procedures right from the setting up of hypothesis to the interpretation of results. The Third Edition is a highly improved and enlarged one. Chapters on testing of assumptions of homogeneity and normality, and advanced multivariate analyses have been added. Solved examples on 3-way ANOVA and additional practice exercises have also been included which are generally not available in books on Statistics. This book is highly useful for students of applied statistics, research scholars and teachers. Suggestions for further improvements are gratefully invited.