Martina Pavlicova <[EMAIL PROTECTED]> writes: > > Is it not true that the Shapiro Wilks test implemented in the package > > ctest requires the assumption that the population variance of the > > variable is known? > > I am not sure about this one...
No, that is false. Shapiro-Wilks basically measures the correlation in a qqnorm() plot (too far below 1 and the distribution is deemed non-normal) which is a scale- and position-invariant measure. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
