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Considere una muestra de 65 observaciones de una poblacin con una desviacin estndar de la poblacin de 0.75. La media muestral es 2.67. Otra muestra

Considere una muestra de 65 observaciones de una poblacin con una desviacin estndar de la poblacin de 0.75. La media muestral es 2.67. Otra muestra de 50 observaciones de una segunda poblacin tiene una desviacin estndar de la poblacin de 0.66. La media muestral es 2.59. Realice la prueba de hiptesis siguiente con el nivel de significancia de 0.08.

H0 : 1 2

H1 : 1 > 2

a) Formule la regla de decisin

b) Calcule el valor del estadstico de prueba.

d) Cul es su decisin respecto de H0?

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