9n227-T Question Help 7 a- 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 randomly selects records from 82 such drivers in 2009 and determines the sample mean BAG to be 0.16 gldL with a standard deviation of 0.060 gIdL. Complete parts (a) through (d) below. (c) Determine and interpret a 90% condence interval for the mean BAC in fatal crashes in which the driver had a positive BAC. Select the correct choice below and ll in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) 0 A- There is a |:|% probability that the population mean BAC is between D and D for drivers involved in fatal accidents who have a positive BAC value. 0 B- The researcher is |:|% condent that the population mean BAC is between D and D for drivers involved in fatal accidents who have a positive BAC value. 0 C. The researcher is |:|% condent that the population mean BAC is not between D and D for drivers involved in fatal accidents who have a positive BAC value. Click to select and enter your answer(s) and then click Check