A larger wing span width means that there is more air resistance against the paper airplane, which will increase flight distance. As we can see especially in trials #2 and 5, the 12 cm paper airplane flew a longer distance than the 8 cm paper airplane. In addition, the mean of the 12 cm airplane is much bigger than the mean of the 8 cm airplane. Therefore, the airplane with a 12 cm wing span width will fly much more than an airplane with a smaller wing span.
