Let's Say That You Are a Crime Scene Investigator

question 23

Multiple Choice

Let's say that you are a crime scene investigator. A victim has died from massive convulsions and violent muscle contractions. In looking for the poison that killed this person, you would probably focus on a drug that resulted in a huge release of

• A) dopamine
• B) GABA
• C) acetylcholine
• D) endorphins
• E) serotonin

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Definitions:

Variance

A statistical measure that represents the average squared deviation from the mean, showing how data points are spread out.

Sample Correlation Coefficient

measures the strength and direction of the linear relationship between two variables in a sample.

P-Value

A measure in statistical hypothesis testing representing the probability of obtaining test results at least as extreme as the ones observed, assuming the null hypothesis is true.

Significant Level

The likelihood of incorrectly dismissing the null hypothesis, often represented by the symbol alpha (α).