Health Care and Fitness Professionals Promote Moderate Exercise for Each

Health care and fitness professionals promote moderate exercise for each person,throughout the week.Positive results are reportedly better heart health.In an attempt to study effect of moderate research on heart health,you track four groups of fellow students through a semester.One group is a control and told not to change any of their exercise patterns.The three other groups are assigned to a 30-minute exercise once,twice or three times a week.Results at the end of the semester show that average blood pressure and pulse rates are nearly the same for the control group and the once-a-week exercisers.Average blood pressure and pulse were slightly lower for the two groups that exercised more often,but not every student showed any difference,and some actually had increases,as found in all four groups.Interpret which conclusion would most likely be made,once the described results are analyzed with statistics.

A) The measured blood pressure and pulse data values of the control group and three exercising groups in this study prove that moderate exercise does not have any beneficial impact on heart health.
B) Measured differences in the average blood pressure and pulse of the three experimental groups will not likely show statistically significant difference from the control group.
C) The individual student data variability and even increased blood pressure and pulse in the two groups exercising more often will not change the fact that the average data values will prove to be statistically significant in difference from the control group.
D) Measured differences in the average blood pressure and pulse of the once-a-week exercise group and the control group will likely show statistically significant difference from the groups exercising more often.