Multiple Choice
Sarah Soliz, Director of Quality Programs, is designing and R charts for the rod shearing process at Stockton Steel.She has 26 samples of rod length, and each sample included measurements of 5 rods.The mean of the 26 sample means is 112 centimetres, and mean of the 26 ranges is 0.15 centimetres.The upper control limit for her
chart is ___.
A) 112.09
B) 5.087
C) 26.087
D) 115.90
E) 110.09
Correct Answer:

Verified
Correct Answer:
Verified
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