Refer to the Baseball 2018 data, which report information on the 30 Major League Baseball teams for the 2018 season. Set up a variable that divides the teams into two groups, those that had a winning season and those that did not. There are 162 games in the season, so define a winning season as having won 81 or more games. Next, find the median team salary and divide the teams into two salary groups. Let the 15 teams with the largest salaries be in one group and the 15 teams with the smallest salaries be in the other. At the .05 significance level, is there a relationship between salaries and winning?

Data From Baseball 2018:

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Year Average Salary Median Salary (SMillions) CPI 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 $2,555,416 2,486,609 2,632,655 2,699,292 2,820,000 3,150,000 3,240,206 3,297,828 1.055 218.060 1.100 3,305,393 3,440,000 224.939 1.020 229.594 3,386,212 1.750 232.957 3,820,000 1.643 236.736 1.925 4,250,000 4,400,000 237.017 1.475 240.007 4,470,000 1.600 245.120 4,520,000 1.750 251.107