A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: 
What is the lower control limit for the mean?
Definitions:
Language
is a system of communication used by humans consisting of the use of words in a structured and conventional way to convey meaning.
Arcuate Fasciculus
A bundle of nerve fibers that connects the Wernicke's area and Broca's area in the brain, facilitating speech and language comprehension.
Broca's Area
A region in the frontal lobe of the brain associated with speech production and language processing.
Wernicke's Area
A region of the brain important for language comprehension, located in the temporal lobe.
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