MAT 155 – Lab 11

Construct a 99% confidence interval for the mean number of books that Americans read either all or part of during the preceding year. Interpret the interval. A random sample of 51 fatal crashes in 2009 in which the driver had a positive blood alcohol concentration (BAC) from the National Highway Traffic Safety Administration results in a mean BAC of 0.167 grams per deciliter (g/dL) with a ... ................
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