There are some possible issues this method of analysis. One of the biggest is that riders can input their birth year incorrectly. Possibly there are many riders that I have counted as seniors even after removing outliers that are actually younger or seniors that put in a younger age. This analysis would much more useful if the ages were certainly correct.
One strength of this analysis is that it clearly shows that there is not a big shift in ride duration for people at age 65 or above, assuming most people tell the truth about their age, it answers the original question I had about senior's ride duration.
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