search for: standarddeviationdistribut

I'm having trouble with the standard deviation distribution as shown on http://mathworld.wolfram.com/StandardDeviationDistribution.html . (Eric Weisstein references Kenney and Keeping 1951, which I can't check.) I believe the graphs they show, but when I code the function in R, according to the listed formula, I get very different graphs. Would someone please point out my error or tell me where it's already implem...

..., Lloyd, John Wiley & Sons. Page 30-32: var(S) = (mu4 - mu2^2)/(4 * mu2 * n) mu4 = E(X - mu)^4, mu2 = E(X - mu)^2, S^2 = sum(X - mu)^2/n The results are about: 0.00090 2. From http://davidmlane.com/hyperstat/A19196.html The results are about 0.00066 3. From http://mathworld.wolfram.com/StandardDeviationDistribution.html The results are about 0.00065 Finally I calculate the standard deviation for each of the 100 subsamples and the standard error of those 100 standard deviations ( I reckon this is the bootstrap result for the standard error of the standard deviation I want). I get 0.00024 I tried all above...