Mathematics, 02.12.2020 21:30, shanua

Una compañía petrolera afirma que un quinto de las casas en cierta ciudad se calientan con petróleo. ¿Tenemos razón para creer que menos de 1/5 se calientan con petróleo si, si en una muestra aleatoria de 1000 casas en esta ciudad, se encuentra que 136 se calientan con petróleo? Utilice un valor P en su conclusión.

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