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Como parte de un estudio de tiempos y movimientos conducido en un centro de salud, una muestra de 100 pacientes pas en promedio 23 minutos

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  1. Como parte de un estudio de tiempos y movimientos conducido en un centro de salud, una muestra de 100 pacientes pas en promedio 23 minutos en la sala de espera entre su registro y su atencin por un miembro del grupo mdico. La desviacin estndar muestral fue de 10. Proporcionan estos datos evidencia suficiente como para indicar que el tiempo medio de permanencia en la sala de espera es mayor que 20 minutos. Sea ? = 0.05. (Pruebas de hiptesis: media de una sola poblacin)

Datos: n =

? =

? =

? =

m =

Hiptesis: Ho:m ?

Ha:m >

Estadstico de Prueba:

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