Bootstrap / Bootstrapping

Tutorial video

 

Summary 

It is one easy and effective way to estimate the sampling distribution of a statistic by drawing additional samples with replacement from the sample itself. The procedure of the bootstrapping is as follows:

1. Draw a sample value, record, with replacement
2. Repeat $n$ times
3. Record the mean of the $n$ resampled values
4. Repeat the steps 1-3 $R$ times
5. Use the results to a) calculate the standard error, b) produce the sampling distribution