Where Is DCS Getting These Numbers?
How do you know your results are accurate? Here are some methods of calculating your Confidence Interval
Dimensional Control Systems 3DCS® is a variation analysis tool that uses Monte Carlo simulation to predict the results of a set of measurements [Dimensional Engineering News, June 2009]. After a variation model is built in 3DCS®, a Monte Carlo simulation can be performed to provide the following statistics:
Descriptive statistics - calculations made directly from the sample data such as mean, minimum, maximum, standard deviation, percentage out-of-spec, confidence intervals, etc.
Inferential statistics – estimations based on a curve-fitting algorithm such as estimated low, estimated high, estimated percentage out-of-spec, etc.