Examlex
In a random sampling technique, every unit of the population has a randomly varying chance or probability of being included in the sample.
Significance Level
A threshold in hypothesis testing, typically denoted by alpha, indicating the probability of rejecting the null hypothesis when it is actually true.
Known Variance
In statistics, refers to a situation where the variance of a population is a known quantity, facilitating certain types of inference.
P(T<=t) Two-Tail
The probability that the test statistic T will fall in either tail of its distribution, assuming the null hypothesis is true, used in two-tailed tests.
Significance Level
A statistical measure that determines the threshold at which the null hypothesis is rejected, commonly represented by the alpha (α) symbol and set before the experiment.
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