We believe that 90% of the population of all Business Statistics students consider statistics to be an exciting subject. Suppose we randomly and independently selected 24 students from the population and observed fewer than five in our sample who consider statistics to be an exciting subject. Make an inference about the belief that 90% of the students consider statistics to be an exciting subject.
A) The 90% number is too high. The real percentage is lower than 90%.
B) The 90% number is too low. The real percentage is higher than 90%.
C) The 90% number is exactly right.
D) It is impossible to make any inferences about the 90% number based on this information.

Question

Quizplus · Accepted Answer

If 90% of students consider statistics exciting, we expect about 21.6 out of 24 to agree. Observing fewer than 5 suggests the 90% belief is likely too high.

We Believe That 90% of the Population of All Business