Discussion questions for recitations

Week 11

  • Explain what the cartoon has to do with P hacking
  • There are now roughly the same number of U.S. mutual funds as there are stocks for them to invest in. Can you make an argument why, every year, this leads to some mutual funds performing extremely well --- and why they rarely repeat their outstanding performance the following year?
  • The short story “Inflexible Logic,” by Russel Maloney, is reproduced here. Can you talk about this story in light of our knowledge of statistical significance?