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Se llev a cabo una encuesta entre 385 sujetos (n), seleccionados al azr, para estimar laproporcin de usuarios de opioides el el universo de adolescentes

  1. Se llev a cabo una encuesta entre 385 sujetos (n), seleccionados al azr, para estimar laproporcin de usuarios de opioides el el universo de adolescentes del municipio de Utuado, Puerto Rico. Se encontr que 20 sujetos (x) eran usuarios de opioides. Para la estimacin deseada indique el valor de:
    1. estimador de punto de la proporcin poblacional (p = x/n):
    2. error estndar (pq/n)0.5
    3. valor del factor de probabilidad de la tabla de Z (si se puede utilizar): Z0.975= _____ d. lmites del intervalo

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