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Even with infinitely powerful telescopes, we can look back in time only until the time when
One-tailed
A statistical test hypothesis that specifies the direction of the expected difference or relationship.
Two-tailed
A type of statistical test that considers both ends of the distribution for checking the significance of the test hypothesis.
Alternative Hypothesis
A hypothesis that contradicts the null hypothesis, proposing that there is a significant difference or relationship.
Sampling Distribution
The distribution of a statistic, like the mean or proportion, derived from a large number of samples of a specific size drawn from a specific population.
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