statistics notes 4

However we should not be too surprised if we threw 56

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Unformatted text preview: r, then P(X > 65) ‡ P(Y > 65.5) = P(Z > 3.1) ‡ 0.001. This is small enough to raise a reasonable doubt that the coin is fair. However, we should not be too surprised if we threw 56 heads, since we can calculate that P(X > 55) ‡ 0.1357, which is not such a small probability. As we said, the actual tests of statistical significance are more sophisticated than this, but we shall not go into them. Homework p. 217, #6 p. 229, #10, 12, 14, 18, 24 53...
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