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Political Science 209 - Fall 2018 Hypothesis Testing Florian Hollenbach 30th November 2018 Hypothesis Testing Goal: Try to determine whether result is due to chance or not Method: Proof by contradiction We try to reject the null

  1. Political Science 209 - Fall 2018 Hypothesis Testing Florian Hollenbach 30th November 2018

  2. Hypothesis Testing Goal: Try to determine whether result is due to chance or not Method: “ Proof ” by contradiction We try to reject the null hypothesis Florian Hollenbach 1

  3. Hypothesis Testing Generally we have two hypotheses: 1. H 0 Null hypothesis: no relationship 2. H 1 Alternative hypothesis: complement to null hypothesis: expected relationship Florian Hollenbach 2

  4. Hypothesis Testing We can never prove a hypothesis to be true or reject a hypothesis with certainty Instead, we may fail to reject the null We use data and statistical test to infer whether we can reject or fail to reject the null Florian Hollenbach 3

  5. Hypothesis Testing Florian Hollenbach 4

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