IBGE Analista Practice Questions - Concurso IBGE - Analista De Planejamento, Gestão E Infraestrutura Exam

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In probability sampling designs such as the PNAD Contínua Master Sample (Amostra Mestra), how is the basic design weight (peso amostral básico) of an individual sample unit defined?

As the reciprocal (inverse) of the unit's inclusion probability in the sample: w_i = 1 / π_i. As the ratio of the sample mean to the known population variance: w_i = ȳ / S^2. As the sample size divided by the total number of non-respondents in the primary stratum. As the standardized z-score of the unit's primary demographic characteristic.

Correct Answer:

As the reciprocal (inverse) of the unit's inclusion probability in the sample: w_i = 1 / π_i.

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