Test Statistic Definition
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Test Statistic Definition
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Test statistic is a quantity derived from the sample for statistical hypothesis testing A hypothesis test is typically specified in terms of a test statistic considered as a numerical summary of a data set that reduces the data to one value that can be used to perform the hypothesis test A test statistic is a standardized score used in hypothesis testing. It tells you how likely the results obtained from your sample data are under the assumption that the null hypothesis is true. The more unlikely your results are under this assumption, the easier it becomes to reject the null hypothesis in favor of an alternative hypothesis.
Test Statistic DefinitionThe test statistic takes your data from an experiment or survey and compares your results to the results you would expect from the null hypothesis. The test statistic is a number that describes how much your test results differ from the null hypothesis. What is a Test Statistic A test statistic assesses how consistent your sample data are with the null hypothesis in a hypothesis test Test statistic calculations take your sample data and boil them down to a single number that quantifies how much your sample diverges from the null hypothesis