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A survey researcher detects that the variance of their estimate is significantly higher than expected due to the inclusion of very large and very small clusters. To correct for the unequal selection probabilities, which method should they use to compute the population mean?
A survey researcher detects that the variance of their estimate is significantly higher than expected due to the inclusion of very large and very small clusters. To correct for the unequal selection probabilities, which method should they use to compute the population mean?