P-value
The p-value is the probability of observing a result at least as extreme as the one seen in your experiment, assuming the null hypothesis is true (i.e., that your treatment had no effect).
In practice, p-values are used to determine statistical significance. If your p-value is lower than your chosen significance threshold (commonly 0.05), the result is considered statistically significant.
For more information about p-values, see Statistical significance.
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