1. A method of presenting an analysis of enterprise wide business data, the enterprise wide business data collectively stored in a plurality of data repositories, comprising the steps of: a) collecting data from the plurality of data repositories into warehouse data stored in a uniform format in a data warehouse; b) in response to a first user request to a web site operable to access said enterprise wide business data and to provide statistical analysis, including six sigma analysis of said enterprise wide business data, transferring an electronic document to said user, wherein said electronic document allows said user to select a performance measure to be analyzed for a data set in said warehouse data; c) in response to a second request from said user to said website, performing a statistical analysis of said performance measure for said data set; and d) transferring an electronic copy of said statistical analysis to said user.