As the p value is less than 0.05 we reject the null hypothesis that, on average, the drip duration is the same or longer for a sample of users BORN AFTER 1960 compared to users BORN BEFORE 1960 throughout the timeframe of Jan 2016 - Feb 2016. In other words, the drip duration is shorter for a sample of users BORN AFTER 1960 compared to users BORN BEFORE 1960 throughout the timeframe of Jan 2016 - Feb 2016.
There are some major concerns with the work accomplished. First, we did not explore why a lot of rows had missing values for Birth Year Group when we created and populated the new column. Then, we did not explore other non-parametric tests besides Mann Whitney Test. Lastly, we only looked at the data of only two consecutive winter months and looking at data year-round might provide different results.