A Researcher Is Interested in Investigating Whether People Perform Better

question 13

Multiple Choice

A researcher is interested in investigating whether people perform better at dexterity tests while listening to classical music or to no music.He designs a dexterity test,and first gives it to his participants while classical music is playing,and then while no music is playing.

• A)Paired t-test,since there are two sets of measurements on the same subjects,providing a natural linking.
• B)1-sample t-test,since there is only one sample of subjects taking the dexterity tests.
• C)Not enough information is given to determine the best type of test.
• D)z-test,since the researcher can find the standard deviation of his population.
• E)Two-sample t-test,since how a subject performs with music should have no influence on how he performs without music,creating two independent samples.

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Definitions:

Mens Rea

A legal principle referring to the intent or knowledge of wrongdoing that constitutes part of a crime, as opposed to the action or conduct of the accused.

Criminal Liability

The legal responsibility for committing acts that are proscribed by criminal law and subject to punishment.

Misdemeanor

A criminal offense that is less serious than a felony and typically punishable by fines, community service, probation, or short-term imprisonment.

Disturbing the Peace

A criminal offense involving acts that disrupt the public order, such as excessive noise or violent behavior in a public place.