A new memory pill actually does not work at all.  However, a researcher gives it to a sample, and by pure chance, he happens to have gotten a sample of people with above average memory.  So, he wrongly concludes that it was the pill that was responsible for their good memory, and he concludes that the pill works.  What has happened? The researcher has made a type II error Need more information to answer The researcher has made the correct decision The researcher has made a type I error

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