Multiple Choice
TABLE 14-3
A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic. Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day.
-Referring to Table 14-3, suppose the analyst constructs an 
chart to see if the production process is in control. What is the upper control limit (UCL) for this chart?
A) 62.15
B) 60.95
C) 59.85
D) 58.75
Correct Answer:
Verified
Correct Answer:
Verified
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