In a study of the effectiveness of a certain anxiolytic on individuals experiencing panic attacks, out of a 120-person sample, 85 reported a decrease in panic attack frequency. Find the 95% confidence interval for the proportion of patients who experienced a reduction in panic attacks while on the anxiolytic

Computing Confidence. 1: A health care professional wants to determine the systolic blood pressure of individuals with hypertension who take Atenolol. Thirty such individuals have an average systolic blood pressure of 105, with a sample standard deviation of 23. Find the 95% confidence interval for mean systolic blood pressure for hypertensive individuals who take Atenolol. … Read more