Martin Batholdy
2009-Mar-08 02:01 UTC
[R] statistical question: confidence interval of regression weight - significance
hi, at first; thanks for the help on getting confidence intervals in R. now I have a pure statistical question. I hope you don't mind if I ask ... I have an expectation of how large my beta-weight in a regression should be - so I have an "ideal" or expected regression line. Now the real beta-weight is less then the expected and when I draw the confidence interval lines above and below the estimated line, the expected regression line is outside of the confidence intervals at the near end and the beginning of the x-scale. Can I say know that the empirical beta-weight is significantly different from the expected beta weight? Or is there a test (perhaps implemented in R) that can tell how the probability is that the estimated (empirical) beta-weight comes from a population where the beta-weight is equal the expected? thanks for any help!
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