My app concerns showing a competitive pricing database's information. This information is supplied by salespeople in the field. So lets say my company deals with widgets and the average price of a widget is $1,000.00. Some users have put in erroneous information, for example, a widget that costs $1.00 or $1MM. These records are clearly the result of user error but enough of these errors will skew the data and can lead to bad decisions. My goal is to use statistics and say "If the price of a widget is X standard deviations from the mean, remove/hide it from the usable/viewable data set".