SCENARIO 15-3
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 SCENARIO 15-3, 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:
Opaqueness
The characteristic of not allowing light to pass through; lacking transparency or translucency.
Decant
The process of gently pouring a liquid from one container to another, usually to separate it from precipitated solids or sediments.
Clarity
The quality of being easily understood, specifically in speech or writing, or the clearness in thought and expression.
CLIA-waived
Refers to tests that are simple laboratory examinations and procedures that have an insignificant risk of an erroneous result under the Clinical Laboratory Improvement Amendments.
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