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Fazer previsões sobre uma população com base em uma amostra

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Comparar duas ou mais médias amostrais

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Estimar parâmetros populacionais

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Verificar a normalidade dos dados

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Nenhuma das anteriores

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Consulta a anuários e revistas

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Observação

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Há diversos métodos para coletar dados primários citados, abaixo, exceto:

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Comentários