### When should you ask Questions?

• Ya know the drill.... I hope I can put you in your Proper Groups
• ### Boot strapping

This week's lab is all about boot strapping. You have seen the R command $$bootstrap(x,nboot,theata)$$

### Why do you use bootstrapping?

Bootstrapping allows assigning measures of accuracy (defined in terms of bias, variance, confidence intervals, prediction error or some other such measure) to sample estimates

### So what?

Resampling allows you to avoid equations and reduce assumptions. However, it doesn't help with all issues. Just an overview of bootstrap and stuff.