If the Sample Standard Deviation Is 10

question 45

Multiple Choice

If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120,the 95 percent confidence interval about the mean is between approximately:

• A)44.37 and 51.63
• B)46.12 and 49.88
• C)47.88 and 48.12
• D)40.0 and 50.0

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Definitions:

Generalized Anxiety Disorder

A psychological disorder characterized by excessive, uncontrollable, and often irrational worry about everyday things.

Incessant Worry

Continuous and unending feelings of anxiety or concern over actual or potential problems.

Muscular Tension

The state of partial or complete contraction of muscles, often resulting from stress or physical exertion.

Attention-Deficit/Hyperactivity Disorder

A neurodevelopmental disorder characterized by patterns of inattention, hyperactivity, and impulsivity that are pervasive and interfere with functioning or development.