pls help with hw question

A researcher wishes to estimate the average blood alcohol concentration (BAC) for drivers involved in fatal accidents who are found to have positive BAC values. He ivity randomly selects records from 75 such drivers in 2009 and determines the sample mean BAC to be 0.15 g/dL with a standard deviation of 0.070 g/dL. Complete parts (a) through (d) below. U A. Ine sample size IS likely less than 10% of the population. . . . . . O B. The sample size is likely less than 5% of the population. O C. The sample size is likely greater than 5% of the population. O D. The sample size is likely greater than 10% of the population. (c) Determine and interpret a 90% confidence interval for the mean BAC in fatal crashes in which the driver had a positive BAC. (Use ascending order. Round to three decimal places as needed.) ntents O A. The lower bound is and the upper bound is . The researcher is 10% confident that the population mean BAC is in the confidence interval for drivers involved in fatal accidents who have a positive BAC value. O B. The lower bound is and the upper bound is . The researcher is 90% confident that the population mean BAC is not in the confidence interval for access drivers involved in fatal accidents who have a positive BAC value. O C. The lower bound is and the upper bound is . The researcher is 90% confident that the population mean BAC is in the confidence interval for drivers a Library involved in fatal accidents who have a positive BAC value. (d) All areas of the country use a BAC of 0.08 g/dL as the legal intoxication level. Is it possible that the mean BAC of all drivers involved in fatal accidents who are Options