Abstract: A data analysis system analyzes data sets that are characterized by a wide variety of probability density functions (PDFs), and also analyzes mixed populations, i.e., a single data set containing subsets of data that each fit a different distribution. The data analysis system receives quality control data from a product manufacturing or product testing floor, determines whether the data is a mixed population, and fits the data with a variety of PDFs. The data analysis system selects the best fitting PDF based on statistical characteristics calculated for each fitted PDF. The data analysis system generates performance capability parameters based on the best fitting PDF, and may generate reports illustrating the performance capability parameters. The data analysis system also adjusts statistical control limits to provide a more reliable process trigger and control plan. In this manner, the data analysis system may more accurately report product performance.

Abstract: An electrical connector apparatus comprising a housing supporting a plurality of contacts in a row, each of the contacts having an initial engagement surface, the plurality of initial engagement surfaces defining a contact curvature across the row that is configured for tangentially engaging a mating connector. A method providing an electrical device that is connectable to a receptacle by a connector having a plurality of contacts defining a contact curvature; inserting the electrical device into the receptacle to tangentially engage a portion of the connector on one of either the electrical device or the receptacle with the contact curvature on the other of the electrical device or receptacle, thereby initially contactingly engaging more than one but less than all of the plurality of contacts before contactingly engaging all the plurality of contacts.