A Researcher Is Testing a Hypothesis of a Single Mean $\alpha$

question 59

Multiple Choice

A researcher is testing a hypothesis of a single mean.The critical z value for $\alpha$ = .05 in a one-tailed test is 1.645.The observed z value from sample data is 1.13.The decision made by the researcher based on this information is to ______ the null hypothesis.

• A)reject
• B)fail to reject
• C)redefine
• D)change the alternate hypothesis
• E)restate

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Definitions:

Variations in Consciousness

Refers to the differences in awareness levels, including wakefulness, sleep, and altered states of consciousness.

Prefrontal Cortex

The front part of the frontal lobe of the brain, important for decision-making, problem-solving, control of behavior and emotions, and complex cognitive behavior.

PGO Activity

Stands for Ponto-Geniculo-Occipital waves, which are associated with REM sleep and are thought to play a role in dreaming and learning.

Activation-Synthesis

A theory suggesting that dreams are the result of the brain's attempt to make sense of neural activity during sleep.