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 R chart to see if the variability in production times is in control. What is the lower control limit for this R chart?
Definitions:
Free Flowing
Describes a process or system that operates efficiently and smoothly without any obstructions or restrictions.
Enthusiasm
A feeling of energetic interest in a particular subject or activity and an eagerness to be involved in it.
Disconfirming Data
Information or evidence that challenges or contradicts established beliefs or theories.
Group Morality
The shared ethical or moral principles that govern the behavior and actions of individuals within a group or society.
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