Luis A. Afonso
Posts:
4,518
From:
LIsbon (Portugal)
Registered:
2/16/05


Re: Sampling From Finite Population with Replacement
Posted:
Sep 29, 2010 7:56 AM


When a problem is ill posed it is difficult to get what it is really asked for. Suppose I generate data from a NORMAL MODEL N(mu, var). Considering any finite set N of values we know that, generally speaking, the sample mean, m, does not coincide with mu. _______ mu = m + bias This bias tends to ZERO when N grows ro infinity. The same way in what concerns variance and its unbiased estimator, the sample variance, svar, which?s the sum of the squared deviations divided by N1. ________ svar = var + bias´

