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Researchers are interested in investigating the effect of a drug that is to be used in the treatment of patients who have glaucoma (an eye disorder associated with high eye pressure). In a volunteer sample of 32 patients with glaucoma in both eyes, one eye of each patient was randomly assigned to this drug, and the other eye was given a placebo. After one week, the eye pressure was measured on each eye. The difference in eye pressure between the two eyes (drug placebo) was measured for each patient. The sample mean difference in eye pressure was 1.20 mmHg (millimeters of mercury), and the sample standard deviation of the differences was 4.62 mmHg Use the 25D method to nd a 95% condence interval for the population mean difference in eye pressure (drug placebo). Round to two decimal places. (l n )