Examlex
Why are nearly all recently built astronomical telescopes reflectors instead of refractors
Chi-squared Distribution
A probability distribution used in hypothesis testing that is derived from the sum of the squares of k independent standard normal random variables.
Critical Value
A threshold in statistical testing that delineates the boundary for rejecting the null hypothesis.
Left-tailed Area
The area under the curve of a distribution to the left of a specified value, often used in hypothesis testing to determine the likelihood of observing a result at least as extreme as the one observed.
Degrees Of Freedom
The number of independent values or quantities that can vary in the calculation of a statistic, crucial for assessing the relevance of test results.
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