This bestselling textbook is designed to help students understand parametric and nonparametric statistical methods so that they can tackle research problems successfully. By working through this book carefully and systematically, those who may not have a strong background in mathematics will gain a thorough grasp of the most widely used statistical methods in the social sciences.


1.1 What do we mean by statistics?

From earliest times men and women have collected and made use of statistics. They used them six thousand years ago in Upper Egypt, assessing the size of the harvest in order to fix the price of corn until the next flooding of the Nile valley. ...

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