Graficos x-r control de calidad

GRÁFICOS DE CONTROL: Gráficas X-R

José Guillermo Díaz Buitrago.

1.

|NO. |06:00 |10:00 ||X`LC=75,7808 | | |
|S= R´/d2 |16,328/2,326 |=7,019776 |
|LCS=|75,7808+(3 X 7,02/5½) |=85.19 |
|LCI= |75,7808-(3 X 7,02/5½) |=66,36 |

|R´LC=16,328 || |
|Sr= d3 X R´/d2 |0,864X16,328/2,326 |=6,065 |
|LCS= |16,328+(3 X 6,065) |=34,523|
|LCI= |16,328-(3 X 6,065) |=0 |

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TABLA X

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TABLA R’

2. Se han observado 20 muestras de tamaño 5, con lossiguientes valores de media y rango.

|Muestra |Media de la muestra |Rango de la muestra |
|1 |0,8372 |0,01|
|2 |0,8324 |0,009 |
|3 |0,8318 |0,008 |
|4|0,8344 |0,004 |
|5 |0,8346 |0,005 |
|6|0,8332 |0,011 |
|7 |0,834 |0,009 |
|8 |0,8344|0,003 |
|9 |0,8308 |0,002 |
|10 |0,835 |0,006...