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 Ø, and
©s 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 selected 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?