C Graduate Degree? A B 1 Employee Years of Service Using the accompanying Accounting Professionals data to answer the following questions. a. Find and interpret a 99% confidence interval for the mean years of service. b. Find and interpret a 99% confidence interval for the proportion of employees who have a graduate degree Click the icon to view the Accounting Professionals data 2 1 19 Y 3 2 9 Y 4 3 9 N 4 14 Y 6 5 8 Y 7 6 26 Y 8 7 8 Y 9 8 20 N (Use ascending order. Round to two decimal places as needed) a. A 99% confidence interval for the mean years of service is 10.66, 20.64 Interpret the confidence interval. Choose the correct answer below 10 9 10 N 11 10 10 N 12 11 6 N 13 12 8 N 14 13 16 Y OA. There is a 99% chance that the population mean years of service will be between the confidence interval limits. 15 14 21 N 16 15 26 N OB. We are 99% confident that the sample mean years of service will be between the confidence interval limits. OC. Of all the data values, 99% of the population will fall between the confidence interval limits 17 16 19 Y 18 17 28 N 19 18 17 N We are 99% confident that the population mean years of service will be between the confidence interval limits. 20 19 8 Y D. 21 20 31 N 22 b. A 99% confidence interval for the proportion of employees who have a graduate degree is (Use ascending order. Round to two decimal places as needed.) 23 24 25 26 D