Question

A baseball coach gives half his players an energy drink to consume before each game; the other half does not receive the energy drink. After a month of games, he analyzes their playing stats. He concludes the energy drink helped improve their performance on the field. How can the coach test the means to be sure his results are not likely to happen by chance?

Answer 1

He can re-run the experiment with the other half of the team.

Answer 2

The coach can use the playing stats to perform Hypothesis Testing, with the null hypothesis being 'the energy drink does not improve performance' and the alternative hypothesis being 'the energy drink does improve performance'.