The Lifetime of a Squirrel Follows a Normal Distribution with Mean

question 83

Multiple Choice

The lifetime of a squirrel follows a normal distribution with mean μ months and a standard deviation $\sigma$ =7 months.To test the alternative hypothesis that μ > 40, 25 squirrels are randomly selected.The null hypothesis is rejected when the sample mean is bigger than 43.Assuming that μ=45, the probability of type II error is approximately _________.

• A)0.076
• B)0.016
• C)0.05
• D)0.011
• E)0.983

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Definitions:

Gestalt Psychology

A psychological theory that proposes the human mind perceives objects as wholes before recognizing their individual parts.

Wertheimer

A psychologist and one of the founders of Gestalt psychology, known for his work on perception and problem-solving.

Functionalist

In psychology, a perspective that emphasizes the purpose and adaptive functions of mental and behavioral processes.

Psychoanalytic

A method of psychology and therapy developed by Sigmund Freud, focusing on unconscious motives and conflicts.