In a large high school, 37% of the teachers believe that five minutes is not enough time for students to change classes. However, 89% of the students believe that five minutes is not enough time for students to change
classes. Let pand be the sample proportions of teachers and students respectively, who believe that five
minutes is not enough time for students to change classes Suppose 28 teachers and 100 students are select
at random and asked their opinion on the amount of time students have to change class
Which of the following is the correct calculation and interpretation of the standard deviation of the sampling
distribution of pros?