One could argue that this experiment by itself cannot provide adequate information to decide if the fans can affect length of a fly ball. The treatment is manipulating the fans; each condition was set...

One could argue that this experiment by itself cannot provide adequate information to decide if the fans can affect length of a fly ball. The treatment is manipulating the fans; each condition was set up only once and then repeatedly observed. Resetting the fans after each shot is not practical because of the need to wait at least 20 minutes for the air flows to stabilize. A second experiment was carried out in May 2003, using a similar experimental protocol. As before, the fans were first set to provide a headwind, and then, after several trials, the fans were switched to a tailwind. Unlike the first experiment, however, the nominal Angle and Velocity were varied according to a 3 × 2 factorial design. The data file domedata1 contains the results from both the first experiment and the second experiment, with an additional column called Date indicating which sample is which. Analyze these data, and write a brief report of your findings.