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Confidence Interval
An encompassing array of values, from sample data statistics, perceived to contain the unknown value of a population parameter.
Population Mean
The average of all the values in a population, representing the central tendency.
Standard Deviation
An index that gauges the degree of fluctuation or deviation within a group of data entries.
Null Hypothesis
A default hypothesis that there is no effect or no difference, and it is the assumption to be tested in statistical hypothesis testing.
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