During Pre-Trials Week, we constructed our disc launcher. Starting with a base, we attached a metal railing to a corner. Then, with a hole cut near the exit point, we fixed two 12-Volt motors to the base with a rod rotating the wheel. However, with the wheel placement and railing alone, it did not give the disc enough tension to shoot out at a reasonable speed. To fix this, we attached a thin piece of wood on top of the base where the disc is launched, and another strip of wood to the railing, closing space for the disc, creating more tension. This was effective, giving the frisbee much more speed out of the launcher. The next step is finding an appropriate angle, likely between 10 and 30 degrees, and height to shoot the disc at, mimicking a real Disc Golf thrower.

To satisfy the conditions for our two-sample t tests, a random sample of at least size 30 had to be taken for each disc type. The gym was used as the open space for the trials, and the dividing wall seen in the first picture was slid over after a couple discs hit it and had to be redone. Blue pieces of masking tape were used to mark where each disc first hit the ground. On each tape included the trial number, disc type, its range and deviation from the center line in inches, and they were all entered into a spreadsheet to organize the data. After all the trails were finished, the data were entered into box plots and were analyzed.

In the range data, there was overlap between the Mid and Putter discs. For the deviation data, there was overlap between the Driver and Mid, as well as the Mid and Putter discs, but not between Putter and Driver. Because of this, three two-sample t tests were done to see if these differences were significant. The first test, between the Mid and Putter discs, produced a P-value of about zero. The other two tests, between Driver and Mid, and Mid and Putter, also produced a P-value of about zero. All three differences were deemed as significant. Because the tests were all significant, and all other box plot comparisons had little to no overlap, there is a significant difference between each discs' range and accuracy. The differences in range as advertised are true and significant, and although the accuracies were not advertised, there are also significant differences between the accuracies. The Driver disc had the farthest range and smallest deviation from the center line, on average, making it the best disc to use on any given day on the frisbee golf course.