Final answer:
The physiological data collected during a training session, such as blood pressure changes or heart rates, provides empirical evidence to test the effects of interventions like exercise on the body.
Step-by-step explanation:
The physiological data collected from a training session can be used to test the hypothesis that blood pressure has decreased after biofeedback exercise training. In research and experimentation, data (singular) refers to the observations collected in a scientific investigation to test a hypothesis, such as the mentioned differences in blood pressure before and after training, or metrics such as body mass, cool-down time, and resting heart rate during different physiological states.
For instance, the given example with the average decrease in blood pressure (xd = −10.2) and the standard deviation (sq = 8.4) demonstrates how to analyze physiological responses to a specific intervention and plotting data from measurements can further assist in the visualization and understanding of these effects.