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.
Steps. 1  1. Learn how to recognize potential outliers. 2  2. Arrange all data points from lowest to highest. 3  3. Calculate the median of the data set.  4. Calculate the lower 1  quartile. 5. Calculate the upper quartile.  6. Find the interquartile 1  range. 7. Find the inner fences for the data  set. 8. Find the outer fences for the data set.