rephrase "A significance level of 0.05 means that we are willing to accept a 5% chance of incorrectly rejecting the null hypothesis, which is a standard level of risk in many fields of research. If the p-value obtained from the statistical test is less than 0.05, we would reject the null hypothesis and conclude that there is a significant difference in the likelihood of developing gastric cancer between the two groups. If the p-value is greater than 0.05, we would not reject the null hypothesis and conclude that there is not a significant difference