If a Stratified Random Sample Is to Be Conducted, Which

question 155

Multiple Choice

If a stratified random sample is to be conducted, which of the following is true?

• A) The population will be broken down into subgroups called strata.
• B) Each subgroup should contain items that are homogeneous with respect to the characteristic of interest.
• C) If effective, the total required sample size should be less than that which would be needed if a simple random sample were selected.
• D) All of the above.

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Definitions:

Oval Window

A membrane-covered opening that leads from the middle ear to the vestibule of the inner ear, where sound vibrations are transmitted.

Cochlear Duct

A fluid-filled spiral tunnel in the inner ear and a key component of the cochlea, responsible for sound perception.

Scala Vestibuli

A perilymph-filled cavity inside the cochlea of the inner ear, which sits above the scala media and leads from the oval window to the helicotrema at the apex of the cochlea.

Bony Labyrinth

A complex system of channels and cavities within the temporal bone of the skull, involved in hearing and balance.