If the ARL is 34.8 for a process which has ATS=69.6 hrs, what is the t – McqOptions

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1.	If the ARL is 34.8 for a process which has ATS=69.6 hrs, what is the time interval before taking samples?
A.	0.5 hrs
B.	8 hrs
C.	2 hrs
D.	4 hrs
Answer» D. 4 hrs

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