ABSTRACT
This chapter looks at group differences that can be examined as a snapshot in time. The null hypothesis states there is no difference between the agencies with respect to gender. If the differences between the observed frequencies and the expected frequencies are big, then it will be more likely that the agencies will differ with respect to gender. The Median test is another test that investigates differences between two independent groups, but this time the investigation focuses on the difference between the two groups using a measure of central tendency, namely the median. Social worker wonders if the difference between these two groups of women may be related to the number of jobs they have held prior to receiving welfare assistance. The Wilcoxon-Mann-Whitney U test is designed to test for differences between two groups, and like the median test the dependent variable must at least be at least measured at the ordinal level.
