How do you get the standard deviation from this hypothesis using this graph ?

1. Null - Alabama's obesity rate is about the same as Georgia's
2. Alternate - Alabama's obesity rate is higher than Georgia's obesity rate

Page 1 of 8 O - ZOOM + K 2013: Percent of adults aged 18 years and older who are obese Location Type Location Value Sample Size 2013: Percent of students in grades 9-12 who are obese National 28.3 Type Location National Value Sample Size National 457,487 National 137 12.580 Alabama Alabama Alaska Alaska Arizona Arkansas Arkansas California Connecticut Colorado Delaware Connecticut Florida Delaware Georgia District of Columbia Hawaii Florida dano Georgia Idaho Louisiana Maine Maryland Kansas Massachusetts 10.2 entucky Michigan Louisian MISSISSIP 15.4 Maine Missouri Maryland 9.4 Massachusetts States Montana Nebraska 12.7 Michigan 12,177 Nevada 11.4 Minnesota New Hampshire 11.2 Mississippi New Jersey States Missouri ow Mexico Montana New York Nebraska orth Carolina North Dakota New Hampshire New Jersey Oklahoma New Mexico Rhode Island New York South Carolina North Carolina South Dakota North Dakota Tennessee Ohio Texas Oklahoma Utah Oregon Vermont Pennsylvania Virginia Rhode Island West Virginia South Carolina 31.7 Wisconsin South Dakota 6,531 Wyoming 10.7 2,910 Tennessee 5,452 Texas 10,085 Utah 12,027 Virginia 7,941 Washington West Virginia Wisconsin Wyoming Territories Puerto Rico Note: Obese is defined as body mass index (BMI) 2 30.0; BMI was calculated from self-reported weight and height (weight [kg]/ height [m?). Respondents reporting weight