Using the accompanying Accounting Professionals data to answer the following questions. a. Find and interpret a 90% confidence interval for the mean years of service. b. Find and interpret a 90% confidence interval for the proportion of employoes who have a graduate degree. Click the icon to view the Acoounting Professionals data. a. A 90% confidence interval for the mean years of service is (Use ascending order. Round to two decimal places as needed.) Interpret the confidence interval, Choose the correct answer bolow. A. Of all the data values, 90% of the population will fall between the confidence interval limits. B. We are 90% confident that the sample mean years of service will be between the confidence interval limits. C. There is a 90% chance that the population mean years of service will be between the confidence interval limits. D. We are 90% confident that the populabion mean years of service will bo botween the confidence interval limits. b. A 90% confidence interval for the proportion of employees who have a graduate degree is (Use ascending order. Round to two decimal places as needed.) Interpret the confidence interval. Choose the correct answar below. A. There is a 90% chance that the population proportion of employees who have a graduate degree will be between the confidence interval limits. B. Of all the data values, 90% of the population will fall between the confidence interval limits. Accounting Professionals Data Accounting Professionals Data