For any process, the sample ranges are, 1.2,1.5,1.1,1.4,1.5. The subgroup size is 5. What will be the process standard deviation? Given: d2=2.326 and A2=0.577

For any process, the sample ranges are, 1.2,1.5,1.1,1.4,1.5. The subgr

1.	For any process, the sample ranges are, 1.2,1.5,1.1,1.4,1.5. The subgroup size is 5. What will be the process standard deviation? Given: d2=2.326 and A2=0.577
A.	0.576
B.	2.322
C.	0.511
D.	2.463
Answer» B. 2.322