What is the expression to calculate the variable-width control limits – McqOptions

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1.	What is the expression to calculate the variable-width control limits for the p-chart?
A.	( bar{p} pm frac{1}{2} sqrt{ bar{p}(1- bar{p})/n_i} )
B.	( bar{p} pm sqrt{ bar{p}(1- bar{p})/n_i} )
C.	( bar{p} pm 3 sqrt{ bar{p}(1- bar{p})/n_i} )
D.	( bar{p} pm sqrt{ bar{p}(1- bar{p})/n_i} )
Answer» D. ( bar{p} pm sqrt{ bar{p}(1- bar{p})/n_i} )

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