Help please a. Which is the best alternative hypothesis for this study? b. Which is the best null hypothesis for this study? c. Given the conditions below, what is the original proportion of surgical site infections (p0)? 2) For a proportions test, the null hypothesis is about which parameters? (B (beta), X, U, P, 0 (theta)

the U.K. a study of surgical site infections found that over a several year period of 67,410 surgeries in the st 832 were followed by a surgical site infection. After the study measures were taken to try to reduce surgical fections. In a followup study out of 6235 surgeries there were 218 surgical site infections. The researchers anted to know if the measures taken reduced surgical site infections. Which of the following is the best alternative hypothesis for this study? O P = Po O p Po