A Researcher Calculates a Mean from a Sample of 19

question 88

Multiple Choice

A researcher calculates a mean from a sample of 19 people. For α = .05, if the researcher states the hypotheses as H₀: µ = 200 and H₁: µ < 200, which of the following is an appropriate critical value?

• A) 0.688
• B) 1.645
• C) 1.734
• D) 1.729

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Definitions:

Hallucinogen

A substance that causes alterations in perception, thinking, and feeling, leading to visual or auditory hallucinations.

Ecstasy

A state of overwhelming joy or intense emotional pleasure, sometimes also referring to a synthetic drug that can induce euphoria.

Psychoactive Drug

A chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior.

Visual Hallucinations

Perceptual experiences during which individuals see objects or events that have no reality or external source in the presence of a waking state.