What is Hypothesis Testing?
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A statistical hypothesis test is a method of statistical inference used to decide whether the data sufficiently supports a particular hypothesis. A statistical hypothesis test typically involves a calculation of a test statistic.
Hypothesis testing is a method of statistics where one wants to know whether certain facts found in the sample data are enough evidence supporting a statement held for a population. Often it involves comparing some collected data with expected data under the assumption that a certain hypothesis is true, which is referred to as the null hypothesis.