Calculates the variance estimate of a sample estimate for a normal mean parameter.
A numeric value, the sample estimate for normal standard deviation.
A numeric value, the sample size of data.
For a sample dataset of size n drawn from a normal distributin N(μ,σ^2, denote the sample estimate on the mean parameter and standard deviation parameter as u and s, Then the variance of the sample mean is Var(u)=s^2/n.
A numeric value, the variance of a sample estimate for a normal mean parameter.
Bug reports, malfunctioning, or suggestions for further improvements or contributions can be sent to Jingqin Luo <[email protected]>.
Patel, J.K. and Read, C.B. (1996) Handbook of the Normal Distribution. CRC Press.
Luo, J and Xiong, C. (2012) Youden Index and Associated Optimal Cut-point for Three Ordinal Groups. Communications In Statistics-Simulation and Computation (in press).
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s <- 1.5 n <- 100 var.mu(s,n)
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