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Supongamos que los datos tienen una distribucin normal y el nmero de observaciones es mayor que cincuenta. Encuentre el valor crtico de z para probar

  1. Supongamos que los datos tienen una distribucin normal y el nmero de observaciones es mayor que cincuenta. Encuentre el valor crtico de z para probar la hiptesis nula.

= 0.05 para una prueba de cola izquierda.

  1. -1.96
  2. 1.96
  3. 1.645
  4. -1.645

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