Examlex
What does the symbol p represent in the following: t₍₄₂₎ = 5.15, p < .01?
Confidence Interval
A range of values derived from sample data that is likely to contain the value of an unknown population parameter.
Sample Variance
A measure of variability or spread in a sample dataset, indicating how much the individual sample points deviate from the sample mean.
Critical Value
The threshold value that a test statistic must exceed to reject the null hypothesis in a statistical test, determined by the significance level of the test.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, often denoted by alpha (α) and typically set at 0.05, 0.01, etc.
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