We have a sequence of independent identically distributed random variables \(\xi_n(i) = \ln \eta_n(i)\) for \(i = 1, 2, \ldots, n\). Let \(\mu = \mathbb{E}[\xi_n(i)]\) and \(\sigma^2 = \text{Var}(\xi_n(i))\) be the mean and variance of the random variables
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