For the following scenarios write the appropriate null and

Question

For the following scenarios, write the appropriate null and alternative hypotheses. Use the appropriate symbols (H_o, H_a, μ, p).

A. The University wants to know if, on average, World Campus students are enrolled in more than 9 credits this semester.

B. World Campus wants to know if more than 50% of students plan to enroll in courses this summer.

C. An article reports that the majority of people lose weight on a certain diet. You want to provide evidence that the article is wrong.

D. Is the mean age of University Park freshman less than 20 years?

E. Do students at State College Area High School do better than the national average of 500 on the Verbal section of the SAT?