l(1U ESTION 5 a] Give ONE (1) example each of univariate, bivariate, and multivariate analysis. (6 marks) b] The manager of a food manufacturing company intends to investigate the association between vaccination status and health outcomes. The following information summarizes the results of the association. Health Outcome Not vaccinated Vaccinated Sick with pneumococcal 23 pneumonia 5 Sick with non-pneumococcal 8 10 pneumonia Stayed healthy 61 77 Research hypothesis df Chi-Square statistics p - value Vaccination statuses influence 2 the health outcome 13.65 0.001 i) Based on the contingency table, state the null and alternative hypotheses. (2 marks) ii) Is there any sufficient evidence to support the hypothesis that vaccination status influence health outcome? Use a = 0.05