A Group of Men Aged 50-59 Followed a Strict Exercise

Essay

A group of men aged 50-59 followed a strict exercise regime for one year. The mean reduction in systolic blood pressure at the end of the year was 2.7 mmHg. Methods of statistics were used to determine that if the exercise regime had no effect on blood pressure, the likelihood of seeing this reduction in blood pressure by chance would be less than 1 in 100. Do the results have statistical significance? Do they have practical significance? Explain.