A Sample of N = 9 Scores Is Obtained from a Population

question 57

Multiple Choice

A sample of n = 9 scores is obtained from a population with μ = 70 and σ = 18.If the sample mean is M = 76,what is the z-score for the sample mean?

• A)z = 0.33
• B)z = 0.50
• C)z = 1.00
• D)z = 3.00

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Definitions:

Peer Group

A group of individuals, often of similar age, background, and social status, that influence an individual's attitudes, behaviors, and learning.

Major Influence

A primary or significant factor that affects or shapes outcomes, behaviors, or beliefs.

Early Adolescence

A phase of adolescence typically ranging from ages 10 to 13, characterized by rapid physical growth, cognitive development, and emotional changes.

Predictor of Adjustment

A factor or variable that can reliably forecast or affect how well an individual adapts to new conditions, stresses, or changes.