Question: B. Using the data in Excel file Accounting Professionals, find and interpret 95% confidence intervals for the following: a. Mean years of service b. Proportion

B. Using the data in Excel file Accounting Professionals, find and interpret 95% confidence intervals for the following: a. Mean years of service b. Proportion of employees who have a graduate degree 14.704 mean years of service 8.13 employees who have a graduate degree Confidence Interval Estimate for the Proportion Data Sample Size 27 Number of Successes 10 Confidence Level 95% Intermediate Calculations Sample Proportion 0.37037037 z value -1.9600 Standard Error of the Proportion 0.0929 Interval Half Width 0. 1821 Confidence Interval Interval Lower Limit 0. 1882 Interval Upper Limit 0.5525

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