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Los datos siguientes presentan el seguimiento de la rentabilidad primaria por accin durante 52 semanas y los valores contables reportados por 10 empresas (The Wall

Los datos siguientes presentan el seguimiento de la rentabilidad primaria por accin durante 52 semanas y los valores contables reportados por 10 empresas (The Wall Street Journal, 13 de marzo de 2000)

Empresa Valor contable Rentabilidad

Am Elec 25.21 2.69

Columbia En 23.20 3.01

Con Ed 25.19 3.13

Duke Energy 20.17 2.25

Edison Int'I 13.55 1.79

Enron Cp 7.44 1.27

Peco 13.61 3.15

Pub Sv Ent 21.86 3.29

Southn Co 8.77 1.86

Unicom 23.22 2.74

Elabore un diagrama de dispersin, que los valores contables ocupen el eje x.

Calcule el coeficiente de correlacin muestral. Qu indica este coeficiente acerca de la relacin entre la rentabilidad por accin y el valor contable?

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