Question

Is there a difference in home field advantage between soccer and football? The Football Association (FA) premier league, a football (soccer) league in Great Britain known for having especially passionate fans. We took a sample of 120 matches (excluding all ties) and found that the home team was victorious in 70 cases. In America, the NFL, an American football league, a sample of 130 games found 74 home field advantage wins.

1. Use Statkey to construct a 90% bootstrap confidence interval for the difference in proportions of soccer leagues and football leagues home field advantage wins.
2. Interpret your 90% confidence interval in the context of this situation.
3. For there to be a statistically plausible difference in home field advantage between soccer and football, the value of zero would not be in the confidence interval. Is there a statistically plausible difference between soccer and football games home field advantage wins? Use statistics to justify your reasoning.

Answer 1