12. The management of a furniture chain designed an incentive plan for its sales agents. To evaluate this innovative plan, 10 vendors were randomly selected and their income "before" and "after" applying the plan was recorded. Can it be said that there was a significant increase in the seller's weekly income? Seller: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10Before: 439.8, 406.8, 495.7, 500.2, 447.2, 464.4, 554.8, 399.9, 344.8, 381.2After: 419.4, 525.9, 574.9, 552.2, 437.6, 521.2, 581.5, 446.8, 333.6, 500.9

12. La gerencia de una cadena de mueblerias, diseno un plan de incentivos para sus agentes de ventas. Para evaluateste plan innovador, se selecciono a 10 vendedores, al azar, y se registraron sus ingresos "antes" y "despues" de aplicar el plan. Se puede afirmar que hubo un aumento significativo en el ingreso semanal del vendedor? vendedor 1 2 3 4 5 6 7 8 9 10 antes 439.8 406.8 495.7 500.2 447.2 464.4 554.8 399.9 344.8 381.2 despues 419.4 525.9 574.9 552.2 437.6 521.2 581.5 446.8 333.6 500.9