Examlex
The alternating current produced by the AC generator is rectified into DC (direct current) through the use of ______.
Two-tail Test
A statistical test that determines if there is a significant difference between the means or proportions of two populations in either direction.
Sample Variances
The measure of dispersion of data points in a sample around their sample mean, serving as an estimate of the population variance.
Test Statistic
A value calculated from sample data during a hypothesis test. Used to determine whether to reject the null hypothesis.
Alpha Level
The threshold of probability set for rejecting the null hypothesis; a measure of the likelihood of a Type I error.
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