Mathematics, 24.04.2020 22:14 paaoolav
In a drawer are two coins. They look the same, but one coin produces heads 90% of the time, when spun while the other one produces heads only 30% of the time. You select one of the coins. You are allowed to spin it ONCE and then must decide whether the coin is the 90%- or the 30%-heads coin. You make this a hypothesis test with the null hypothesis being the coin you selected is the 90%-heads coin. You reject the null if your spin is tails. How large is the α-level in this case? Hint: The probability you reject a true null
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