Re: [R] 2 Sample Confidence Interval - Formatting Data?

2007-10-10 Thread Moshe Olshansky
Hello Wayne, Welch Test (as suggested by M.S.) can be a good choice, but since your sample is very small you must ask yourself what can you assume about the two samples (i.e. do they come from more or less normal distributions, etc.). Regards, Moshe. --- Wayne Aldo Gavioli <[EMAIL PROTECTED]> w

Re: [R] 2 Sample Confidence Interval - Formatting Data?

2007-10-09 Thread Marc Schwartz
On Tue, 2007-10-09 at 18:37 -0400, Wayne Aldo Gavioli wrote: > > Hello all, > > I have to run a 2 Sample Confidence Interval on some data; the command for > such > intervals is "confint(...)", but in the help documentation it says that you > need a "fitted model object" in order to run this comm

Re: [R] 2 Sample Confidence Interval - Formatting Data?

2007-10-09 Thread Nordlund, Dan (DSHS/RDA)
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Wayne Aldo Gavioli > Sent: Tuesday, October 09, 2007 3:37 PM > To: [EMAIL PROTECTED] > Subject: [R] 2 Sample Confidence Interval - Formatting Data? > > > > Hello all,

[R] 2 Sample Confidence Interval - Formatting Data?

2007-10-09 Thread Wayne Aldo Gavioli
Hello all, I have to run a 2 Sample Confidence Interval on some data; the command for such intervals is "confint(...)", but in the help documentation it says that you need a "fitted model object" in order to run this command. What does that mean? The data is very small, it's: x=c(8,12,10,14,2