One of the control charts that can be used within statistical process control is the chart for mean and range. The measures were taken from a milli...
One of the control charts that can be used within statistical process control is the chart for mean and range. The measures were taken from a milling process and the charts for mean and range need to be plotted. Suppose a process obtained the following measures: X1 = 10; X2 = 12; X3 = 10; X4 = 15; X5 = 11. Regarding the range used in this sample, choose the correct alternative:
a) 2.
b) 0.
c) 5.
d) 3.
a) 2.
b) 0.
c) 5.
d) 3.
💡 1 Resposta
Ed 
Para calcular o range, é necessário subtrair o menor valor do maior valor da amostra. X1 = 10; X2 = 12; X3 = 10; X4 = 15; X5 = 11. O menor valor é 10 e o maior valor é 15. Range = 15 - 10 = 5. Portanto, a alternativa correta é a letra c) 5.
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