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Classification: UNCLASSIFIED Caveats: NONE A similar question has been posted in the past but never answered. My question is this: for probit analysis, how do you program a 95% confidence interval for the LD50 (or LC50, ec50, etc.), including a heterogeneity factor as written about in "Probit Analysis" by Finney(1971)? The heterogeneity factor comes into play through the chi-squared

[adding llvm-dev for wider audience] On Fri, May 19, 2017 at 12:28 PM, Daniel Berlin <dberlin at dberlin.org> wrote: > > > On Fri, May 19, 2017 at 11:00 AM, Davide Italiano <davide at freebsd.org> > wrote: > >> On Fri, May 19, 2017 at 10:00 AM, Sanjay Patel <spatel at rotateright.com> >> wrote: >> > Is "VRP" (value range

...for homogeneity and is equal to h=chi^2/(k-2), > where k > is the number of doses and k-2 are the degrees of freedom. > > I have done a lot of research on this and really appreciate any help [[elided Yahoo spam]] The reason it may not have had a rely ... assuming the questions was homomorphic to this one... is that there is no R content in this question. You may want to post on: http://stats.stackexchange.com/ But I suggest you be somewhat more descriptive than just citing a 40 year-old text. -- David Winsemius, MD West Hartford, CT ------------------------------ Message: 1...