A Random Sample of 11 Third-Year Medical School Students Took

Multiple Choice

A random sample of 11 third-year medical school students took a comprehensive written exam as well as a comprehensive oral exam. The scores on both exams are given below. It is established that both test scores have highly nonnormal distributions. The medical examination board wants to know if the oral exam scores are higher than the written exam scores. State the appropriate null hypothesis for this problem.

A) H₀: The probability distribution of written exam scores is identical to the probability distribution of oral exam scores.
B) H₀: The probability distribution of written exam scores is shifted to the left of the probability distribution of oral exam scores.
C) H₀: The probability distribution of written exam scores is shifted to the right of the probability distribution of oral exam scores.
D) H₀: The probability distribution of written exam scores is shifted to the left or right of the probability distribution of oral exam scores.