An experiment was conducted to test whether the spice saffron can inhibit liver cancer. The experimental group was fed saffron (n=24) whereas the control group was not (n=8). Only 4 of...An experiment was conducted to test whether the spice saffron can inhibit liver cancer. The experimental group was fed saffron (n=24) whereas the control group was not (n=8). Only 4 of the 24 subjects in the saffron group developed cancer as compared to 6 of the 8 subjects in the control group. What method could be used to test whether this difference between the experimental and control groups is statistically significant?