Arlene Usually Gets Only Four or Five Hours of Sleep

question 29

Multiple Choice

Arlene usually gets only four or five hours of sleep each night. She is often tired in class, which makes it difficult to pay attention. What should Arlene do?

• A) She should drink coffee or an energy drink in the afternoon.
• B) She should exercise in the morning.
• C) She should take a nap in the afternoon to catch up on sleep.
• D) She should start studying late at night.

Comprehend the concepts of effect size, its interpretation, and importance.

Understand the assumption of homogeneity of variance.

Distinguish between the null hypothesis and the research hypothesis in the context of the t test for independent samples.

Familiarize with the statistical software output for t-tests and its components.

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Definitions:

Contamination

The presence or introduction of harmful or undesired substances, making something impure or unsuitable for use.

Lax Regulation

Refers to regulatory policies that are not strict or rigorous, often leading to lessened supervision over activities.

Clean Air Act

U.S. legislation aimed at reducing and controlling air pollution by setting limits on emissions from both stationary and mobile sources.

Philanthropic Responsibilities

The obligation of individuals or organizations to act for the benefit of society at large, often through charitable activities or donations.