The appropriate statistical test to find out obesity as a significant risk factor for breast cancer is:: (A) Student's paired 't' test, (B) Student's unpaired 't' test, (C) Chi-square test, (D) Wilcoxon's signed rank test
Answer is C. Obesity is qualitative variable ; breast cancer also qualitative. So, appropriate statistical test to find out obesity as a significant risk factor for breast cancer is Chi-square test.