Reliable manufacturers make and ship products that meet specifications agreed upon with their customers. Most manufacturing involves producing hundreds or thousands of parts per day, so it is not economically feasible, or physically possible, to check every part for specification compliance. Statistical process control (SPC) provides a means to ensure that parts are within defined specifications, by applying statistical analysis to a sampling of the parts produced. The manufacturer can then confidently certify that shipments meet agreed-upon quality standards. This course reviews the theory and background of SPC and the techniques of using statistical analysis to determine whether parts meet quality standards.