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Mathematics, 23.04.2021 18:20 MadisonElle

A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with A random sample of 12 sample specimens has a mean compressive strength of psi. Round your answers to 1 decimal place. (a) Calculate the 95% two-sided confidence interval on the true mean compressive strength of concrete.

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A civil engineer is analyzing the compressive strength of concrete. Compressive strength is normally...
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