The Owner of a Meat Market Has an Assistant Who

question 122

Multiple Choice

The owner of a meat market has an assistant who has determined that the weights of roasts are normally distributed,with a mean of 3.2 pounds and standard deviation of 0.8 pounds.If a sample of 25 roasts yields a mean of 3.6 pounds,what is the Z-score for this sample mean?

• A) -2.50
• B) 2.50
• C) -0.50
• D) None of these choices.

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Definitions:

Environmental Influences

Refers to external factors such as culture, education, and social relationships that impact an individual's development and behavior.

Genetic Influences

The impact of genes inherited from parents on various aspects of an individual's physical and behavioral traits.

Twin-Study Method

A research strategy used in genetics and psychology to differentiate between genetic and environmental influences by comparing the similarities between monozygotic (identical) and dizygotic (fraternal) twins.