Random sampling research among students in two universities has been conducted for studying their satisfaction of the administrative service there. Sample in one of both universities includes 60 students, 70% of which have been satisfied by the admin service there. Sample in the other university includes 40 students and 50% of them have been satisfied. At significance level a=0.05 test the hypothesis whether there is significant difference between proportions of students satisfied by the admin service in both universities. Answer A) Ho is confirmed, thus at a-0,05 there is statistically significant difference between proportions of students satisfied by the admin service in both universities. Answer B) Hi is confirmed, thus at a-0,05 there is statistically significant difference between proportions of students satisfied by the admin service in both universities. Answer C) Ho is confirmed, thus at a=0,05 the proportion of students satisfied by the admin service in the first university is larger than this one in the second university. Answer D) Ho is confirmed, thus at a=0,05 there is no statistically significant difference between proportions of students satisfied by the admin service in both universities. Answer E) Ho is rejected, thus at a=0,05 there is no statistically significant difference between proportions of students satisfied by the admin service in both universities.