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El monto que una muestra de nueve clientes gastan en el almuerzo (en dlares) en un restaurante de comida rpida: 4.20 5.03 S.86 6.45 7.38

El monto que una muestra de nueve clientes gastan en el almuerzo (en dlares) en un restaurante de comida rpida: 4.20 5.03 S.86 6.45 7.38 7.54 8.46 8.47 9.87 Con un nivel de significancia de 0.05, existe evidencia de que el monto medio gastado para el almuerzo sea diferente de $6.50?

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