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Join PCGS Director of Education Mike Sherman as he provides collectors with insight on grading circulated coins. In about 10 minutes, Mike explains the factors that contribute most to a circulated coin's grade. www.PCGS.com
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SOLVED: To test the hypothesis that a coin is fair, the following decision rule is adopted: accept the hypothesis if the number of heads in a single sample of 200 tosses is between 80 and 420 inclusive. Reject the hypothesis otherwise. Determine the probability of committing a type I error.
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