Let's imagine that we are interested in the question of whether basketball teams in the NCAA have a home-court advantage in games early in the season. Below are the observed data for 120 different teams during the third week of December in 2010.
Victorious Team Observed Victories Expected Victories
Home 65 60
Away 55 60
a) If the null hypothesis is that home teams and away teams have an equal chance of winning a game, what is the expected value for 120 games for the two categories?