I've written many articles about bootstrapping in SAS, including several about bootstrapping in regression models.| The DO Loop
Pearson's correlation measures the linear association between two variables.| The DO Loop
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A previous article discusses a formula for a confidence interval for R-square in a linear regression model (Olkin and Finn (1995) "Correlations redux", Psychological Bulletin) The formula is useful for large data sets, but should be used with caution for small samples.| The DO Loop