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Sumerians used barley to make beer.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, commonly denoted as alpha.
Statistically Significant
An observation or effect sufficiently large or important to be unlikely to have occurred by chance, as per a predefined threshold in hypothesis testing.
Confidence Interval
An aggregation of values, hailing from sample statistics, anticipated to envelop the value of an unseen population parameter.
Sample Mean
The average value of a sample set, calculated by summing all observations and dividing by the number of observations.
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