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 six tubes is taken every three hours and weighed with the following results: 
What is X-bar for 7 am?
Definitions:
Hyposecretion
The diminished secretion of hormones or other products from glands, leading to deficiencies in the body.
Abbreviation
A compact version of a word or phrase.
Potassium
A mineral and an electrolyte essential for cell function, heart, muscle, and nerve function, and the maintenance of normal blood pressure.
IDDM
Insulin-Dependent Diabetes Mellitus, also known as Type 1 Diabetes, where the body's immune system attacks insulin-producing cells.
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