Given a Sampling Distribution of the Sample Mean That

question 78

Multiple Choice

Given a sampling distribution of the sample mean that is normally distributed and has a mean of 30 and a standard deviation of 8, a sample mean of 40 corresponds to:

• A) a z-value of -1.25
• B) a z-value of +1.25
• C) a z-value of +2.25
• D) a sample size of 120
• E) a sample size of 300

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Definitions:

ADHD

Attention-Deficit/Hyperactivity Disorder, a brain disorder marked by an ongoing pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.

Impulsivity

Refers to the tendency to act quickly without careful thought or consideration of the consequences.

Methamphetamine Dependence

A strong physical and psychological dependence on the stimulant drug methamphetamine, characterized by the compulsive need to use despite harmful consequences.

Methylphenidate (Ritalin)

The most frequently prescribed stimulant medication for children with attention deficit hyperactivity disorder (ADHD).