In a school, the students were classified according to the following departments. Classification                       Number of students              Criminology Dep’t                        210            Health Dep’t                                    63             Social Work Dep’t                         55             Educ. Dep’t                                          72              Determine the sample size with 5% margin of error using Slovin’s/Yamane’s formula and Cochran’s formula Determine the number of respondents per group/stratum based on Slovin’s or Cochran’s.