please help

The Education Minister of a Province would like to know if there is a difference whether international students choose university over college when applying for post-secondary schools in his province. A simple random sample of 200 students are selected from the University and in that sample there are 35 international students, A simple random sample of 80 students are selected from the College, and in that sample, there are 28 international students. What is the denominator of the test statistic for the appropriate test of significance?? O (0.350) (0.650) 1 200 + 80 O (0. 175) (0.825 1 200 + 80 0.175(0.825) 0.350(0.650 80 + 200 O 0.175(0.825) 0.350(0 $50 200 + 80 (0.225) (0. 775) 200 80