### Statistics: Research questions and hypothesis for 2005 Major League Baseball season

In the 2005 Major League Baseball season, a random sample of 10 American League teams' home runs showed a mean total of 175.3 with a standard deviation of 31.7. In the National League a random sample of 10 teams' home runs showed a mean of 159.6 with a standard deviation of 31.53. Is the difference in home runs between leagues s