Hello,

I was interested in trying to write an R script to calculate a UCL for a lognormal distribution using the Chebyshev Inequality — MVUE Approach (based on EPA’s guidance found in http://www.epa.gov/oswer/riskassessment/pdf/ucl.pdf). This looks like it should be straight forward, but I am need to calculate an MVUE for the population mean and an MVUE for the population variance, which requires a value (g_n) from a table A7,  found   in Aitchison and Brown (1969): The lognormal distribution. I have looked across the RSiteSearch and can not seem to find a function that will give me g_n or the MVUE for mean and variance of lognormal distribution.

Is there an R function that will give me g_n or will calculate an MVUE for the population mean and variance for the lognormal distribution?

VR

Jim


James T. Durant, MSPH CIH
Emergency Response Coordinator
US Agency for Toxic Substances and Disease Registry
Atlanta, GA 30341
770-378-1695





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