test the following hypotheses:

a.BMI differs between those with SSI and those without SSI

oChi- Square Test since we are comparing two data between BMIs of with and without SSI in a Population

oNull Hypothesis: There is no significant difference on the Body Mass Index of a person with SSI and without SSI.

oAlternative Hypothesis: There is a significant difference on the Body Mass Index of a person with SSI and without SSI.

Count of BMI Column Labels E| Row Labels E 0 1 Grand Total 12-22 584 40 624 22-32 1609 146 1755 32-42 412 47 459 42-52 63 6 69 52-62 9 2 11 >82 1 1 Grand Total 2678 241 2919 Count of Race _Column Labels El Row Labels 5 0 1 Grand Total 1 2429 218 2647 2 181 15 196 3 68 8 76 Grand Total 2678 241 2919 Count of Season Column Labels Row Labels 1 2 3 4 Grand Total .12 1 .7 .9 .9 1 1 2 1 U D W N H O DO JU A NOUN 1 1 16 28 19 1 4 UT 16 8 N 2 12 1 1 56 1 38 1 blank) 867 701 392 897 2857 Grand Total 881 708 400 930 2919Position Variable Variable Label Units Codes 1 Age Patient's age years 0 = No 2 Female Female 1 = Yes 1 = White 3 Race Race 2 = Black 3 = Others 4 BMI Body Mass index kg/m^2 1 = normal healthy patient 2 = mild systemic disease American Society of 5 ASAstatus 3 = severe systemic disease Anesthesiologist physical status 4 = severe systemic disease (constant threat to life) 0 = No 6 Diabetes Diabetes 1 = Yes 0 = No ChronicRenalFailure Chronic renal failure 1 = Yes 0 = No 8 PreopSteroids Preoperative usage of steroids 1 = Yes 0 = No 9 Emergency Emergency case 1 = Yes 10 DurationSurgery Duration of surgery hours 11 VitaminD Vitamin D levels ng/ml 1 = Fall 2 = Winter 12 Season Season 3 = Spring 4 = Summer 13 RBC RBC transfusion ml 0 = No 14 SSI surgical site infection 1 = Yes