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For a Variable with = 3

question 37

Multiple Choice

For a variable with For a variable with = 3.50, how large should the sample be for a desired 95% confidence interval width of 1.50? A) 9 B) 21 C) 84 D) 441 = 3.50, how large should the sample be for a desired 95% confidence interval width of 1.50?

Definitions:

Semicircular Canals

Three fluid-filled tubes in the inner ear that help maintain balance by sensing rotation of the head.

Cochlea

A spiral-shaped, fluid-filled inner ear structure that is essential for hearing as it transfers sound vibrations to nerve impulses.

Vestibule

An entrance or enclosed area just inside the entrance of a building, or, in anatomy, a cavity, chamber, or channel opening into another cavity, especially of the ear, nose, or mouth.

Romberg Test

A neurological test that assesses the sense of balance and proprioception, wherein an individual is asked to stand with feet together and eyes closed to detect problems in the vestibular or proprioceptive systems.