What is the value of the center line of the sample variance control ch – McqOptions

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1.	What is the value of the center line of the sample variance control chart?
A.	( bar{s}^2 )
B.	s<sup>2</sup>
C.	( bar{s} )
D.	( overline{s^2} )
Answer» B. s<sup>2</sup>

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