Body voltage testing â also called skin voltage testing â is the most sensitive, accurate and helpful method available to detect electric fields. This is a very important measurement, especially for sensitive individuals.
An outlier can be created by a shift in the location. (mean) or in the scale (variability) of the process. Though an observation in a particular sample might be a. candidate as an outlier, the process might have shifted. Sometimes, the spurious result is a gross recording. error or a measurement error.
Outliers can skew the mean or average value of a data set. For example, the mean or average value of a data set consisting of four numbers -- 50, 55, 65 and 90 -- is 65. Without the outlier 90, however, the mean is about 57.