Mathematics, 27.04.2021 14:50 nickeymcorrea
Twenty 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 20 blocks were sufficiently strong. Use the small-sample method to construct a 90% confidence interval for the proportion of blocks that are sufficiently strong. Round the answers to at least three decimal places.
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Twenty concrete blocks were sampled and tested for crushing strength in order to estimate the propor...
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