THREE groups: less than 2.0 (million), 2.0 up to 3.0, and 3.0 or more. THESE THREE GROUPS ARE HIGHLIGHTED IN THE DATA. THEY CAN ALSO BE DETERMINED BY LOOKING AT WHICH TEAMS MEET THE AFOREMENTIONED CRITERIA

Team Opened Wins Attendance BA ERA HR Errors League 1 1 0 90 68 55 94 175 136 146 195 114 96 118 111 SB 134 110 105 122 1 1 1 1 0 1990 1994 2000 1966 1999 1973 1991 2001 1989 1992 2004 75 72 85 104 132 109 149 131 211 170 198 214 Salary 2012 64.2 78.4 60.7 55.4 82 60.9 96.9 63.4 75.5 81.4 55.2 74.3 118.1 93.4 82.2 81.3 83.3 3.19 4.78 4.56 3.48 3.76 4.3 4.02 3.86 4.64 3.9 4.01 3.93 4.09 4.09 3.34 79 73 93 76 1 1 1.56 1.6 1.61 1.68 1.72 1.74 1.97 2.09 2.1 2.1 2.12 2.18 2.22 2.24 2.35 2.37 2.42 2.63 2.78 2.83 0 0 Tampa Bay Rays Cleveland Indians Houston Astros Oakland Athletics Seattle Mariners Kansas City Royals Chicago White Sox Pittsburgh Pirates Toronto Blue Jays Baltimore Orioles San Diego Padres Arizona Diamondbacks Miami Marlins New York Mets Cincinnati Reds Washington Nationals Atlanta Braves Colorado Rockies Minnesota Twins Milwaukee Brewers Chicago Cubs Detroit Tigers Boston Red Sox Los Angeles Angels St. Louis Cardinals Los Angeles Dodgers San Francisco Giants Texas Rangers New York Yankees Philadelphia Phillies X 0 Seating Capacity 34078 43429 40981 35067 47860 37903 40615 38362 49260 45971 42691 48633 36742 41922 42319 41487 49586 50398 39504 41900 41009 41255 37495 45957 43975 56000 41915 48194 50287 43651 X4 1998 2012 2009 0 0 0 72 113 70 112 101 106 121 90 103 101 89 94 86 81 69 95 97 98 94 121 165 137 139 172 194 149 0.24 0.251 0.236 0.238 0.234 0.265 0.255 0.243 0.245 0.247 0.247 0.259 0.244 0.249 0.251 0.261 0.247 0.274 0.26 0.259 0.24 0.268 0.26 0.274 0.271 0.252 0.269 0.273 0.265 0.255 X; 73 123 58 155 93 149 79 87 105 101 0 3.33 3.42 0 0 1 122 107 78.1 94.1 97.7 88.2 132.3 64 66 83 61 166 131 202 0 0 2003 2008 1996 1995 2010 2001 1914 2000 1912 1966 2006 1962 2000 1994 2009 2004 X3 99 105 1 1 88 69 1 0 0 173.2 154.5 110.3 95.1 117.6 2.88 3.03 3.04 3.06 3.26 3.32 3.38 3.46 3.54 3.57 89 88 86 94 93 74 81 5.22 4.77 4.22 4.51 3.75 4.7 4.02 3.71 3.34 3.68 3.99 3.85 3.83 X, 137 163 165 187 159 116 103 200 245 158 X 10 99 101 98 107 98 115 85 100 135 158 94 59 97 134 91 104 118 91 93 116 X 12 0 1 1 0 120.5 198 174.5 74 101 X 11 X2 X5 X X2 At the 5% significance level, is there a difference in the variation in wins between the first and second groups? Step 1. Ho:o H2:01 Step 2. a = 0.05 Step 3. statistic z, t, F Step 4. Reject Ho if z abs(z), t, abs(t), F Step 5. test statistic = p = the null hypothesis. Reject, Fail to reject the variation in the second Step 6. The variation in the first group is group. ,,