Jackknife resampling for linear data
This is an example using Jackknife resampling on linear data. Data points are in L and if you download the geogebra file and look at the definitions and show help objects that are now hidden you can get an idéa och how to start automizing this process. If you have more than, say 10 points, it might be worth doing it.
Also, this file may serve as a template for you. Simply replace the data points in L with your own.