a) Without conducting complex analyses, determine if wearing seat belts reduces injuries by comparing the proportions of injuries in cases where seat belts were used or not used across the four combinations of G L. (b) Fit a saturated logistic model for the odds of injury against no injury and report the relevant estimates of odds ratios with both the Wald and profile likelihood 95% confidence intervals. Based on relevant information at this point of analysis, discuss whether the sample size is larger enough to use the asymptotic inference for this model