Examlex
Who are minimum wages designed to help? Do they succeed? What is their effect on society?
Z-statistic
A measure that describes how far a data point is from the mean, expressed in units of standard deviation.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, commonly denoted by alpha and used as a threshold for determining the statistical significance of a result.
Parametric Test
A type of hypothesis test that assumes the sample data comes from a population that fits a certain distribution, typically a normal distribution.
Z-statistic
A measure used in statistics to describe the relationship between the standard deviation of the distribution and the deviation of a point from the mean.
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