Outliers can severely skew the accuracy of any analysis conducted on a data set, and can lead to potentially incorrect conclusions.
planned
J
Jorge Arboleya
Outliers are often excluded from the analysis with a Outlier filtering/detection such as do A/B testing platforms handle outliers, example:
Optimizely: https://help.optimizely.com/Measure_success%3A_Track_visitor_behaviors/Outlier_filtering_in_Optimizely_X
Dynamic Yield:
Corentin Gilles
planned