When using the p-value method for a two-tailed hypothesis, the p-value is found by finding the area in the tail beyond the test statistic, then doubling it.

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In a two-tailed hypothesis test, the p-value is calculated by finding the area in one tail (beyond the test statistic) of the probability distribution and then doubling this area to account for both tails of the distribution. This reflects the probability of observing a test statistic as extreme as, or more extreme than, the one observed under the null hypothesis.

When Using the P-Value Method for a Two-Tailed Hypothesis, the P-Value