Statistics

Written in plain English, without unnecessary mathematics, technical jargon, or computational busywork, Robert and John Witte's Eighth Edition of Statistics clearly explains the basic concepts and procedures of descriptive and inferential statistical analysis. The text helps students gain the confidence and conceptual understanding they need to tackle such perennially mystifying topics as the standard deviation, variance interpretation of the correlation coefficient, hypothesis tests, degrees of freedom, p-values, and estimates of effect size.

Now revised, this Eighth Edition presents a reduced number of chapters to better accommodate one-semester and one-quarter classes. The new edition also features a new emphasis on expressions involving sums of squares and degrees of freedom, a stronger stress on the importance of variability, an expanded treatment of estimates of effect size, more material on inferential statistics, revised treatment of degrees of freedom, and updated examples.