Definitions Flashcards
(30 cards)
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Hypothesis Test
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A hypothesis test is a statistical procedure used to assess evidence in a sample against a null hypothesis, by computing a test statistic and comparing it to a critical value or p-value, under a chosen significance level α.
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Assumptions Hypothesis Testing
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1) Random sampling; 2) Independence of observations; 3) Scale of Observations; 4) i.i.d.
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Test Statistic
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A standardised value calculated from the data. It measures how much the data differs from what H0 would have expected to see
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Poisson
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Normal
