Show the mechanism of the following reaction. 
Definitions:
P-value
A statistical metric that helps determine the significance of results, indicating the probability of observing the given data if the null hypothesis is true.
Statistically Significant
A determination that a relationship between two or more variables is caused by something other than chance.
High-Variation Population
A population with a wide range of characteristics or outcomes, indicating significant diversity or differences among its members.
Sample Size
The number of observations or data points used in a statistical sample, which determines the accuracy and reliability of the study's findings.
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