Mathematics, 02.12.2021 02:50 MaddieXMooo990

Un gerente de ventas del economato universitario afirma que en promedio sus representantes de ventas realiza 40 visitas a profesores por semana. Varios de estos representantes piensan que realizan un número de visitas promedio superior a 40. Una muestra tomada al azar durante 8 semanas reveló un promedio de 42 visitas semanales y una desviación estándar de 2 visitas. Utilice un nivel de confianza del 99% para aclarar esta cuestión.

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