Exercise 1: The case of equal variances
The standard deviation of newborn birth weight in a certain region is 0.41 kg. The mean birth weight of 24 newborn babies in the north area of the region was 3.53 kg and that of 19 newborn babies in south area was 3.28 kg. Analyze whether there is a statistical difference between the 2 areas.
Exercise 2: The case of equal variances (t test)
Patients with mild hypertension were randomly allocated into 2 study groups, and 2 different antihypertensive drugs were administered in each group. Examine whether peak blood pressure (mmHg) shows a difference between 2 groups after a certain period of treatment.
