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

Question

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

Quizplus · Accepted Answer

The Answer of 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

Sarah Soliz, Director of Quality Programs, Is Designing and R