A college admissions officer obtains a 90% confidence interval for the mean age (in years) of students enrolled in her college. Her confidence interval is (22.18, 23.50). Which of the following is the best interpretation of this confidence interval? O 90% of all students at the college are between the ages of 22.18 years and 23.50 years. There is a 90% probability that the mean age is between 22.18 years and 23.50 years. O 90% of the students sampled are between the ages of 22.18 years and 23.50 years. O We may reject the null hypothesis that the mean age of students at the college is equal to 22.84 years and at a 0.1 level of significance. O We are 90% confident that the mean age of all students at her college is between 22.18 years and 23.50 years