[R] Changing the Significance Level in R for Hypothesis Tests and Regression Analysis

[David Winsemius]

On Nov 20, 2010, at 11:41 AM, Daniel Carawan wrote:

> Hi,
>
> I have been unable to find how to go about changing the significance  
> level
> in R for hypothesis testing and regression analysis. R has a default  
> setting
> to alpha=95% (a significance level of 95%), but I want to be able to
> decrease or increase this level when necessary. If you could give me
> instructions on how to change the significance level in R for  
> hypothesis
> testing and regression analysis I would appreciate it.

The lm() page refers you to the predict.lm() page for confidence  
intervals.

-- 

David Winsemius, MD
West Hartford, CT