The following statements are true (select all that apply): USL – LSL should be a
ID: 441968 • Letter: T
Question
The following statements are true (select all that apply):
USL – LSL should be at least 10 in a five sigma capable process
USL – LSL should be at least 12 in a six sigma capable process
USL – LSL should be at least 8 in a four sigma capable process
USL – LSL should be at least 4 in a four sigma capable process
USL – LSL should be at least 6 in a six sigma capable process
a.USL – LSL should be at least 10 in a five sigma capable process
b.USL – LSL should be at least 12 in a six sigma capable process
c.USL – LSL should be at least 8 in a four sigma capable process
d.USL – LSL should be at least 4 in a four sigma capable process
e.USL – LSL should be at least 6 in a six sigma capable process
Explanation / Answer
To reach six sigma quality the difference between USL (upper specification limits) and LSL (lower specification limits) must always be 12 .A process is said to have six sigma quality if the process mean is optimal. So the statement (b) is True