Suppose you wanted to know the effect of a new training method on baseball batters' swing speeds. You recruited 500 college baseball players and had them train for 6 months using the new method. You measured the athletes' maximum swing speed values before and after the 6-month training. After comparing the athletes' before- and after-training maximum swing speed data, you found a significant increase in their swing speed after training (compared to their before-training swing speed). So, you concluded that the new training method is better than the old training method. What is the biggest problem with this conclusion? Why? Explain.

ASAP PLEASE .. I DO UPVOTE..ASAP