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n un estudio sobre el efecto del estrs sobre la presin arterial. Encontramos que la presin sistlica media en varones jvenes estresados no es igual

n un estudio sobre el efecto del estrs sobre la presin arterial. Encontramos que la presin sistlica media en varones jvenes estresados no es igual a 18 cm de Hg. Con el objetivo de probar nuestra hiptesis se selecciono una muestra de 144 jvenes la cual mostr una presin sistlica promedio de 18.5 cm de Hg. De estudios anteriores sobre el efecto del estrs sobre la presin arterial se sabe que la varianza es igual a 12.96 (cm de Hg)2. Sea =0.006

a. Cul es el parmetro a estimar?

b.Plantee las hiptesis estadsticas

c. Calcule el estadstico de Prueba (utilice dos cifras decimales):

d. Tipo de prueba

e. Nivel de significacin

f. Estadstico de corte

g. Decisin:

h. Conclusin

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