HIGH - the highest hourly wage offered. The number of job openings received through the Employment Service System of TWC during the twelve-month period regardless of atypical wages. ALL - the total number of job openings received. This section addresses the methodology utilized for atypical data contained in the TWC Employment Service System database for 1998. Atypical data, in this context, can be referred toas an outlier.
Outliers are data that are far away from the central tendency of the data.
The outlier criterion used was based on a standard deviation rule. Outliers usually are not defined rigorously. The most any outlier test can do is show that a value is unlikely to have come from the same population as the other values in the group. If an outlier is due to chance, it should be retained. Several methods can be used for detecting outliers.