1.

The 3 sigma upper limit for a control chart for average number of nonconformities per unit, is expressed by ___________

A. UCL= ( bar{u} + 3 sqrt{ frac{ bar{u}}{n}} )
B. UCL= ( bar{u} 3 sqrt{ frac{ bar{u}}{n}} )
C. UCL= ( bar{u} 2 sqrt{ frac{ bar{u}}{n}} )
D. UCL= ( bar{u} frac{3}{2} sqrt{ frac{ bar{u}}{n}} )
Answer» B. UCL= ( bar{u} 3 sqrt{ frac{ bar{u}}{n}} )


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