The Precision with Which a Sample Average Approximates a Population

question 94

Multiple Choice

The precision with which a sample average approximates a population average increases as

• A)the standard deviation of the sample increases.
• B)the standard deviation of the sample decreases.
• C)the mean of the sample increases.
• D)the mean of the sample decreases.

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Definitions:

Infants

Very young children, typically from birth to one year of age, characterized by rapid physical and cognitive development.

Research

The organized examination and analysis of materials and sources with the goal of establishing facts and drawing new conclusions.

Mother's Voice

The specific auditory perception of one's mother's voice, which is often recognized from a very young age and can have a calming or comforting effect.

Human Voice

The sound produced by humans using the vocal folds for speaking, singing, laughing, crying, screaming, etc.