Exercise 20 Jumping Jacks
The data that my group collected refutes our hypothesis because the difference and inconsistency of the breaths per minute in the ventilation rate and the breath volume in liters are all around the same amount. The p-value from the t-test for ventilation (breaths/minute) was 0.27, and for the breath volume (liters) it was 0.15. Both p-values are above 0.05, the Null Hypothesis is accepted. There is an overlap of data. The answer to the previous question is yes, mild and vigorous exercise affects the ventilation rate the same way as breath volume rates with little to no difference.
Our data is not reliable because the numbers do not add up. In some cases, such as Savannah’s, the resting rate for breath volume is higher than the heart found after
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Jumping jacks are just good for conditioning or warming up before doing the actual exercise. The data could be of higher quality if the group of students stayed seated at their desks for 30 minutes before carrying out the 20 jumping jacks. This proposed experiment of mine cannot be successfully done in one class period so I suggest finding time after school. Once they’ve rested, then the first set of jumping jacks can be done. In the procedure it only states to “Rest until your ventilation rate returns back to the resting value that you began with.” There is no indication as to how long this should take. I propose that the students wait for 30 minutes to give the body enough time to reach its target resting rate. The procedure lacks details like: after doing the jumping jacks the procedure states to record your ventilation rate with no indication as to how long to wait. This detail could affect the outcome of the data because they might blow into the spirometer too soon or too late. I suggest changing that to blowing into the spirometer within the first 10 seconds of finishing your jumping jacks. Another change I would make is including the formula for the standard deviation in the procedure or there might be a splice in the data. A better procedure would be if the students walk up three flights of stairs for moderate exercise, rest for 30 minutes, and then run up those same three flights to measure the ventilation
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