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 Exercise 4

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 Exercise 4.2.20, the large sample confidence interval was obtained for the probability that a tack tossed on a table lands point up. Find the discrete exact confidence interval for this proportion.

Exercise 4.2.20

When 100 tacks were thrown on a table, 60 of them landed point up. Obtain a 95% confidence interval for the probability that a tack of this type lands point up. Assume independence.