Examlex
A two-tailed t-test is appropriate when the researcher has a directional hypothesis implying that an observed mean can only be greater than or less than a hypothesized value.
Thyroid Gland
An endocrine gland located in the neck, producing hormones that regulate metabolism, energy generation, and overall growth and development.
Parathyroid
Small glands located behind the thyroid which produce parathyroid hormone, involved in calcium regulation.
Vertebra Prominens
The most prominent vertebra in the neck, easily felt through the skin, typically the seventh cervical vertebra (C7).
C7 Vertebra
The seventh cervical vertebra, located near the base of the neck, distinguished by its prominent spinous process.
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