ABSTRACT

The journey through the intriguing area of inferential statistics begins in Chapter 7 by reviewing the one-sample t-test and then moving on to the two versions (independent and dependent t-test) of the two-sample case, the simplest levels of inferential statistics. The two-sample case, where the researcher places the subjects into two groups, applies treatments, compares the means of the two groups, and uses this information to test the null hypothesis (H 0) and to generalize the results to the population is described. Because this first exposure to the world of inferential statistics is so important to understand completely, Chapter 7 goes into these procedures in great detail. An illustration of the canonical model is presented by showing how the correlation coefficient can be used to produce a conclusion about the null hypothesis identical to the one obtained with the two-sample t-test.