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Lecture 7

Ian Covert edited this page Mar 21, 2017 · 7 revisions

today

Fisher

  • bitter rivalry with Neyman and Pearson
  • a scientist, not just a mathematician
    • claimed that Neyman and Pearson were mathematicians with insufficient real world experience
  • did not view failure to reject null hypothesis (type II error) as an error
    • basically doesn't view failure to reject null hypothesis as a final decision
  • agreed with Neyman and Pearson on one point: Bayesians were wrong

Neyman and Pearson

  • more mathematically rigorous: formalized hypothesis testing, type I & II errors, power of tests
  • notable result is Neyman-Pearson lemma, which identifies the most powerful test at a given significance level
  • rejected probabilistic interpretation of power of hypothesis tests. Hence the use of the term power

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