Examlex
________ is the industry standard language for defining,manipulating,and retrieving data in a database.
T-test
A statistical test used to compare the means of two groups to determine if they are significantly different from each other.
Inference Conditions
Requirements that must be satisfied to validly use certain statistical inference methods.
Mean Annual Income
The average amount of money earned per year by an individual or household.
Standard Deviation
This statistical index measures how spread out the numbers in a data set are.
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