does bootstrapping use confidence interval bootstrapping confidence intervals for a linear regression bootstrapping regression how to predict intervals using bootstrapping how to predict confidence interval for linear regression model how to use confidence intervals in linear regression how to find prediction intervals for a linear regression what is the purpose of bootstrapping can bootstrapping be used to calculate confidence intervals? what is the bootstrapping procedure for linear regression how to calculate confidence intervals when to use bootstrapping how to use prediction intervals on regression bootstrapping confidence intervals what is confidence interval bootstrapping bootstrapping definition regression how to calculate confidence intervals in a regression model how to calculate confidence intervals for linear regression model why do they use bootstrapping what is the purpose of bootstrapping?