Consider a Claim That 60% of the Mice in a Region

question 20

Multiple Choice

Consider a claim that 60% of the mice in a region have parasitic infections. We can use an χ² goodness-of-fit test to test whether the proportion is indeed 60%. Consider a study in which we collect a random sample of 50 mice and 37 have infections. What is the χ² value we would obtain?

• A) 1.500
• B) 1.883
• C) 4.083
• D) 5.094

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Definitions:

Endocrine System

A network of glands in the body that produce and release hormones directly into the blood to regulate the body's growth, metabolism, and sexual development and function.

Sympathetic Nervous System

A component of the autonomic nervous system that activates the body's fight or flight response in preparation for action.

B Lymphocytes

A type of white blood cell that plays a critical role in the immune system by producing antibodies to fight infections.

Bacterial Infection

An infection caused by bacteria entering the body, multiplying, and causing a reaction in the body.