A committee that is studying employer-employee relations proposed that each employee would rate his or her immediate supervisor, and in turn the supervisor would rate each employee. To find reactions regarding the proposal, 120 office personnel and 160 plant personnel were selected at random. Seventy-eight of the office personnel and 90 of the plant personnel were in favour of the proposal. We test the hypothesis that the population proportions are equal with a 0.05 significance level. What is your decision?
Use 5 step-procedure for testing a hypothesis.