If a Hair Does Not Have a Follicular Tag, an Expert

question 51

Multiple Choice

If a hair does not have a follicular tag, an expert witness is on best scientific footing when stating that:

• A) the hair in question comes from a 21-year-old.
• B) the hair is useless as evidence in the case.
• C) his examination reveals that the hair is that of a male.
• D) a suspect hair comes from a particular animal species.
• E) the given hair comes from a specific person.

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Definitions:

Normal Approximation

The process of using the normal distribution to approximate the distribution of a sample statistic.

Standardized Test Statistic

A statistic that has been transformed to have a mean of zero and a standard deviation of one, used in hypothesis testing.

P-value

A statistical measure that helps scientists and researchers determine the significance of their results, representing the probability of observing the collected data, or something more extreme, if the null hypothesis were true.

Z-test Approximation

A statistical method that uses the Z-distribution to approximate the significance of observed differences, typically used when sample sizes are large and the standard deviation is known.