A Random Sample from an Unknown Population Had a Sample

question 63

Multiple Choice

A random sample from an unknown population had a sample standard deviation of zero. Which one of the following is a reasonable conclusion?

• A) The sample range must be zero.
• B) An error was made in computing the sample standard deviation. It must always be greater than zero.
• C) The population standard deviation must be zero.
• D) The population standard deviation must be zero when the mean is zero.
• E) None of these.

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Definitions:

Swinney's Research

Refers to studies conducted by psychologist David Swinney, often associated with linguistic processing and lexical access in the brain.

Lexically Ambiguous

A term used to describe a situation where a word or phrase has more than one meaning, leading to potential confusion in understanding.

Speech Perception

The process by which the human brain interprets spoken language, involving the decoding of phonetic sounds into meaningful units.

Acoustic Properties

Characteristics of sound or sound waves, including aspects like pitch, volume, and timbre, relevant in fields like physics and music.