Question: how to calculate confidence interval for lognormal distribution?
Answer: For a 95% confidence interval, the 2.5% and 97.5% percentiles for T2 are calculated from the 10000 simulated values. These are the lower and upper limits in a confidence interval for . This means that a 95% confidence interval for the lognormal mean is obtained as [exp(T2;0.025), exp(T2;0.975)].