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Twenty-Three Concrete Blocks Were Sampled and Tested for Crushing Strength

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Question 26
Multiple Choice
arrowQuestion 26arrow
Multiple Choice

Twenty-three concrete blocks were sampled and tested for crushing strength in order to estimate the proportion that were sufficiently strong for a certain application. Eighteen of the 23 blocks were sufficiently strong. Use the small-sample method to construct a 95% confidence interval for the proportion of blocks that are sufficiently strong


A)(0.575, 0.906)
B)(0.614, 0.951)
C)(0.562, 0.920)
D)(0.602, 0.879)

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