This is a basic textbook on how to handle and interpret statistical data. It is for anyone who comes up against statistical data in his ordinary work.
Many people feel a need to know more about statistics. They want to know how to deal with numerical data, how to judge other people’s analyses, and how to choose between all the techniques that are on offer. This book is for such people: administrators and business executives, economists and technologists, social, natural, and biological scientists, and teachers and students in these areas.
Ehrenberg, A (2000), "Data Reduction", Journal of Empirical Generalisations in Marketing Science, Vol. 5, No. 1