Practice Final Examination

Apr 29, 2013 · Determine and interpret a 90% confidence interval for the mean BAC in fatal crashes in which the driver had a positive BAC. The 90% confidence interval for the mean BAC is (0.147, 0.153). Round to the nearest thousandth. We are 90% confident that the mean BAC in fatal crashes in which the driver had a positive BAC is in the interval (0.147, 0.153). ................
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