Unidad 4 Histograma

Grafico de Control Tipo C

Nelson rules que aparecen en el grafico :
Rule 5 Two (or three) out of three points in a row are more than 2 standard deviations from the mean in the same direction.
Rule 6 Four (or five) out of five points in a row are more than 1 standard deviation from the mean in the same direction.